Question

Find the product of:



(2x - 7)(x + 4)​

Answer 1

Step-by-step explanation:

$(2x - 7)(x + 4)$

$= 2x \times x + 2x \times 4 - 7 \times x - 7 \times 4$

$= 2 {x}^{2} + 8x - 7x - 28$

$= 2 {x}^{2} + x - 28$

Answer 2

Step-by-step explanation:

(a-b) (a+b)= a²+b²

(2x - 7)(x + 4)= 4x²+784