4 
Super Tutor As a passionate mathematics teacher, I have always enjoyed imparting knowledge to others. I am a B.Tech graduate in Electronics and Communication....
Featured 
Super Tutor Ph.D candidate with over 10 years of teaching exp. (7 years at BYJU's & 3 years at a IB/IGCSE school). Specialized in IB, IGCSE, CBSE & ICSE cu...
Super Tutor I completed my B.Tech in computer technology and MBA in marketing. I have six years of experience. I began giving home tuition in 2016 in Mumbai and...
Do you need help in finding the best teacher matching your requirements?
Post your requirement nowSuper Tutor I bring over four years of hands-on experience in mathematics and science, making complex topics easy to understand. My deep knowledge in areas like...
Super Tutor 20 years
Featured Super Tutor This is Debabrato Chatterjee online Maths and Science tutor having 13+years of experience. I have already and presently teaching students of IB,...
Super Tutor I am a resident of Kerala working in a CBSE school.I got the opportunity of working with Kendreya Vidyalaya (Ottapalam) , Cambridge Public School...
Super Tutor My teaching exp.11 year in most reputed coaching in india. Mentor of jee top rank air-12 yatis agrawal, 19, 28 many more in top 100 in jee adavnced....
Super Tutor As a teacher I am teaching 8 th stdandrd students from last 4 years in tutions and 3 years in school . In school my main subject is maths but as a...
Top Tutor Very successful and satisfying.Regardless of how hard we try some students won't pay attention and some students will score less marks. It's is how...
Sumit attended Class 8 Tuition
"yrstyursyusru"
Student attended Class 8 Tuition
"Very efficient in all the topics , gives the knowledge in depth for the topics"
Sumana attended Class 8 Tuition
"She teaches very well. I can easily relate to chapters and texts. Earlier Mathematics..."
Venkatdilip attended Class 8 Tuition
"Good teacher "
Rahul attended Class 8 Tuition
"chandan sir has deep knowledge of Maths and Science and after that he is friendly..."
Juluri attended Class 8 Tuition
"Narayan sir has a very high spirit and good knowledge of subject. More i like about..."
Subasis attended Class 8 Tuition
"She is good"
Naresh attended Class 8 Tuition
"dvsddsd"
Algebraic Expressions And Identities Lessons
Ask a Question
Post a LessonAnswered on 02/02/2024 Learn CBSE/Class 8/Maths/Algebraic Expressions And Identities
Pooja R. Jain
To find the value of x2−15x2−51 at x=−1x=−1, substitute x=−1x=−1 into the expression:
(−1)2−15(−1)2−51
1−151−51
To combine the terms with a common denominator, express 1 as 5555:
55−1555−51
4554
So, the value of x2−15x2−51 at x=−1x=−1 is 4554.
Answered on 02/02/2024 Learn CBSE/Class 8/Maths/Algebraic Expressions And Identities
Pooja R. Jain
To find the value of x2+y2−10x2+y2−10 at x=0x=0 and y=0y=0, substitute these values into the expression:
(0)2+(0)2−10(0)2+(0)2−10
0+0−100+0−10
−10−10
So, the value of x2+y2−10x2+y2−10 at x=0x=0 and y=0y=0 is −10−10.
Answered on 02/02/2024 Learn CBSE/Class 8/Maths/Algebraic Expressions And Identities
Pooja R. Jain
To evaluate (99)2(99)2, simply square the number 99:
(99)2=99×99(99)2=99×99
(99)2=9801(99)2=9801
Therefore, (99)2(99)2 is equal to 9801.
Answered on 02/02/2024 Learn CBSE/Class 8/Maths/Algebraic Expressions And Identities
Pooja R. Jain
To simplify the expression x(2x−1)+5x(2x−1)+5 and find its value at x=−2x=−2, follow these steps:
x(2x−1)+5x(2x−1)+5
Distribute the xx into the parentheses:
2x2−x+52x2−x+5
Now, substitute x=−2x=−2 into the expression:
2(−2)2−(−2)+52(−2)2−(−2)+5
2(4)+2+52(4)+2+5
8+2+58+2+5
1515
So, the simplified expression is 2x2−x+52x2−x+5, and its value at x=−2x=−2 is 1515.
Answered on 02/02/2024 Learn CBSE/Class 8/Maths/Algebraic Expressions And Identities
Pooja R. Jain
To evaluate (95)2(95)2 using identities, you can use the square of a binomial formula:
(a+b)2=a2+2ab+b2(a+b)2=a2+2ab+b2
In this case, a=90a=90 and b=5b=5. Apply the formula:
(95)2=(90+5)2(95)2=(90+5)2
=902+2×90×5+52=902+2×90×5+52
=8100+900+25=8100+900+25
=9025=9025
So, (95)2(95)2 is equal to
Ask a Question
4 
0
