Advertisements
Advertisements
प्रश्न
Expand the following:
(m + 8) (m - 7)
बेरीज
उत्तर
(m + 8) (m - 7)
= m2 + 8m - 7m - 56
= m2 + m - 56
(Using identify : (x+ a) (x - b)
= x2 + (a - b) x - ab).
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
APPEARS IN
संबंधित प्रश्न
Simplify the following products:
`(x/2 - 2/5)(2/5 - x/2) - x^2 + 2x`
Prove that a2 + b2 + c2 − ab − bc − ca is always non-negative for all values of a, b and c
If a + b + c = 0 and a2 + b2 + c2 = 16, find the value of ab + bc + ca.
If 3x − 2y = 11 and xy = 12, find the value of 27x3 − 8y3
Evaluate: `(2"a"+1/"2a")(2"a"-1/"2a")`
Evaluate: 20.8 × 19.2
Simplify by using formula :
(a + b - c) (a - b + c)
If a - b = 10 and ab = 11; find a + b.
If `x + (1)/x = 3`; find `x^4 + (1)/x^4`
If x + y + z = 12 and xy + yz + zx = 27; find x2 + y2 + z2.
