Advertisements
Advertisements
प्रश्न
Factorise the following.
x2 + 4x – 77
बेरीज
Advertisements
उत्तर
We have,
x2 + 4x – 77
= x2 + (11 – 7)x – 77
= x2 + 11x – 7x – 77
= x(x + 11) – 7(x + 11)
= (x + 11)(x – 7)
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 7: Algebraic Expression, Identities and Factorisation - Exercise [पृष्ठ २३५]
APPEARS IN
संबंधित प्रश्न
Expand (2)2p − 3q
Expand (7m − 4)2
Expand: (98)2
Factorise the following expressions
y2 – 10y + 25
(p – q)2 = _______________
Simplify: (a + b)2 – (a – b)2
A square lawn has a 2 m wide path surrounding it. If the area of the path is 136 m2, find the area of lawn
Factorise the following, using the identity a2 – 2ab + b2 = (a – b)2.
x2 – 8x + 16
Factorise the following, using the identity a2 – 2ab + b2 = (a – b)2.
9x2 – 12x + 4
Factorise the following, using the identity a2 – 2ab + b2 = (a – b)2.
a2y3 – 2aby2 + b2y
