Advertisements
Advertisements
प्रश्न
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
x2 + 12x + 36
बेरीज
Advertisements
उत्तर
We have,
x2 + 12x + 36
= x2 + 2 × 6 × x + 62
= (x + 6)2 ...[∵ a2 + 2ab + b2 = (a + b)2]
= (x + 6)(x + 6)
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 7: Algebraic Expression, Identities and Factorisation - Exercise [पृष्ठ २३४]
APPEARS IN
संबंधित प्रश्न
Using identities, evaluate 712
Using identities, evaluate 992
Using (x + a) (x + b) = x2 + (a + b) x + ab, find 5.1 × 5.2
Use an expansion formula to find the value.
(97)2
Use the formula to multiply the following.
(x + y) (x − y)
Expand (3m + 5)2
Factors of 9x2 + 6xy are
Simplify: (a + b)2 – 4ab
If a + b = 10 and ab = 18, find the value of a2 + b2
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
a2x2 + 2abx + b2
