Advertisements
Advertisements
प्रश्न
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
9x2 + 24x + 16
बेरीज
Advertisements
उत्तर
We have,
9x2 + 24x + 16
= (3x)2 + 2 × 3x × 4 + 42
= (3x + 4)2
= (3x + 4)(3x + 4)
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 7: Algebraic Expression, Identities and Factorisation - Exercise [पृष्ठ २३४]
APPEARS IN
संबंधित प्रश्न
Use a suitable identity to get the following products.
(7a − 9b) (7a − 9b)
Using identities, evaluate 1.05 × 9.5
Use the formula to multiply the following.
`(x/5+6)(x/5-6)`
Use a formula to multiply of (4z – 5y)(4z + 5y)
Evaluate the following, using suitable identity
1032
(a + b)2 – 2ab = ______ + ______.
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
4x2 + 4x + 1
Factorise the following, using the identity a2 + 2ab + b2 = (a + b)2.
a2x2 + 2ax + 1
Factorise the following.
y2 + 18x + 65
Factorise `x^2 + 1/x^2 + 2 - 3x - 3/x`.
