Question

- 1. IfA = (2x - 5y) * (3x + 2y) where x = 5, y = - 3, then the value of the expressions is ​

Answer 1

Answer:

The answer is 225.

Step-by-step explanation:

Given,

           x = 5

            y = -3

SOLUTION

                      = (2x - 5y) * (3x + 2y)

                      = (10 + 15) * (15 - 6)

                      =  25 * 9

                      =  225

 Hope it helps you.

Answer 2

$\rightarrow{(2x\:-\:5y)\:(3x\:+\:2y)}$

substituting x = 5 , y = -3 .

$\rightarrow{[2(5)\:-\:5(-3)]\:[3(5)\:+\:2(-3)]}$

$\rightarrow{[10\:+\:15]\:[15\:+\:-6]}$

$\rightarrow{[10\:+\:15]\:[9]}$

$\rightarrow{25\:×\:9}$

$\rightarrow{225}$