Advertisements
Advertisements
प्रश्न
Simplify:
(b2 – 49)(b + 7) + 343
सोपे रूप द्या
Advertisements
उत्तर
We have,
(b2 – 49)(b + 7) + 343 = b2(b + 7) – 49(b + 7) + 343
= b3 + 7b2 – 49b – 343 + 343
= b3 – 49b + 7b2
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 7: Algebraic Expression, Identities and Factorisation - Exercise [पृष्ठ २३२]
APPEARS IN
संबंधित प्रश्न
Simplify the following using the formula: (a − b)(a + b) = a2 − b2: 113 × 87
Find the value of x, if 4x = (52)2 − (48)2.
Find the value of x, if 14x = (47)2 − (33)2.
Find the following product: \[\left( x + \frac{4}{3} \right)\left( x + \frac{3}{4} \right)\]
Find the following product: (z2 + 2) (z2 − 3)
Expand the following:
(3a + 1) (3a – 2) (3a + 4)
If (x + y + z) = 9 and (xy + yz + zx) = 26, then find the value of x2 + y2 + z2
Using suitable identities, evaluate the following.
(49)2
Using suitable identities, evaluate the following.
52 × 53
Perform the following division:
(– qrxy + pryz – rxyz) ÷ (– xyz)
