alleryCompute 98² using an identity:
A9604
B9504
C9404
D9904
Answer & Solution
Correct answer: A. 9604
We have 98² = (100 − 2)².
That is 98² = 100² − 2·100·2 + 2².
That is 98² = 10000 − 400 + 4.
So 98² = 9604.
Keep practising Polynomials and Algebraic Identities
Browse all Polynomials and Algebraic Identities questions for CBSE Class 9, or explore more Mathematics topics.
Related questions
What is the slope of the line 2x + 3y = 6?What is the equation of the x-axis?Which of these equations is NOT a linear equation in two variables?At which point does the line x + y = 7 cut the x-axis?If x = 2 and y = k satisfy the equation 5x - 3y = 1, what is the value of k?Which ordered pair is a solution of the equation 3x + 2y = 12?Match the degree to the nameIf x and x + 10 add to 64, the linear equation is: