Advertisements
Advertisements
Question
Simplify:
(x2 – 4) + (x2 + 4) + 16
Simplify
Advertisements
Solution
We have,
(x2 – 4) + (x2 + 4) + 16 = x2 – 4 + x2 + 4 + 16
= (x2 + x2) + (– 4 + 4 + 16)
= 2x2 + 16
shaalaa.com
Is there an error in this question or solution?
Chapter 7: Algebraic Expression, Identities and Factorisation - Exercise [Page 231]
APPEARS IN
RELATED QUESTIONS
Simplify the following using the formula: (a − b)(a + b) = a2 − b2: 95 × 105
Simplify the following using the formula: (a − b)(a + b) = a2 − b2: 1.8 × 2.2
Find the following product: (2x2 − 3) (2x2 + 5)
Evaluate the following by using identities:
10013
On dividing 57p2qr by 114pq, we get ______.
Multiply the following:
(2x – 2y – 3), (x + y + 5)
Simplify:
(2.5m + 1.5q)2 + (2.5m – 1.5q)2
Using suitable identities, evaluate the following.
47 × 53
Using suitable identities, evaluate the following.
105 × 95
Perform the following division:
(3pqr – 6p2q2r2) ÷ 3pq
