Advertisements
Advertisements
प्रश्न
Expand (2)2p − 3q
योग
Advertisements
उत्तर
It is known that, (a + b)2 = a2 + 2ab + b2 and (a − b)2 = a2 − 2ab + b2.
(2p − 3q)2
= (2p)2 − 2 × (2p) × (3q) + (3q)2
= 4p2 − 12pq + 9q2
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
संबंधित प्रश्न
Expand: (5x - 4)2
Expand: (98)2
Expand the following square, using suitable identities
(xyz – 1)2
Show that (m – n)2 + (m + n)2 = 2(m2 + n2)
The factors of x2 – 6x + 9 are
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 – 10x + 25
Factorise the following, using the identity a2 – 2ab + b2 = (a – b)2.
4y2 – 12y + 9
Factorise the following.
y2 + 4y – 21
Factorise the following.
a2 – 16p – 80
