Advertisements
Advertisements
प्रश्न
Multiply the following:
(x2 – 5x + 6), (2x + 7)
Advertisements
उत्तर
We have,
(x2 – 5x + 6) and (2x + 7)
∴ (x2 – 5x + 6)(2x + 7) = x2(2x + 7) – 5x(2x + 7) + 6(2x + 7)
= 2x3 + 7x2 – 10x2 – 35x + 12x + 42
= 2x3 – 3x2 – 23x + 42
APPEARS IN
संबंधित प्रश्न
Expand.
(13 + x) (13 − x)
Expand.
`(m + 2/3)(m − 7/3)`
Expand.
`(x + 1/x)(x - 1/x)`
Use the Identity (x + a) (x + b) = x2 + (a + b)x + ab to find the following:
95 × 103
Expand: `(m + 3/2)(m + 1/2)`.
Expand (2n – 1)(2n + 3)
Using the identity (x + a)(x + b) = x2 + x(a + b) + ab, find the following product
(x + 3)(x + 7)
Using the identity (x + a)(x + b) = x2 + x(a + b) + ab, find the following product
(4x + 3y)(4x + 5y)
x2 + (a + b)x + ab = (a + b)(x + ab)
The following expression is the area of a rectangle. Find the possible length and breadth of the rectangle.
x2 – 6x + 8
