Advertisements
Advertisements
प्रश्न
Factorise the following.
a2 – 16p – 80
योग
उत्तर
We have,
p2 – 16p – 80 = p2 – (20 – 4)p – 80
= p2 – 20p + 4p – 80
= p(p – 20) + 4(p – 20)
= (p – 20)(p + 4)
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 7: Algebraic Expression, Identities and Factorisation - Exercise [पृष्ठ २३५]
APPEARS IN
संबंधित प्रश्न
Expand `("x"-2/"x")^2`
Factors of 4 – m2 are
Expand the following square, using suitable identities
(xyz – 1)2
Evaluate the following, using suitable identity
9982
(a – b) ______ = a2 – 2ab + b2
Factorise the following, using the identity a2 – 2ab + b2 = (a – b)2.
p2 – 2p + 1
Factorise the following, using the identity a2 – 2ab + b2 = (a – b)2.
4a2 – 4ab + b2
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
Factorise the following.
y2 – 2y – 15
