Question

find the product of the following expression (a) (3x+6) (5x-7)​

Answer 1

$= (3x+6) (5x-7)$

$= 3x (5x-7) + 6(5x-7)$

$= 15 {x}^{2} - 21x + 30x - 42$

$= 15 {x}^{2} + 9x - 42$

Answer 2

Answer:

10x-24

Step-by-step explanation:

(3x+6) (5x-7)

3x(5x-7) = 15$x^{2}$-35x -----------(i)

+6(5x-7) = 30x-24 ------------(ii)

Adding (i) and (ii) we get,

15$x^{2}$ - 35x + 30x - 24

15$x^{2}$ - 5x - 24

10x - 24