3 years ago

Find the value of x, please I need help! (5x + 13) (3x + 7)

1 answer:

4 0

STEP-BY-STEP SOLUTION:

0 = ( 5x + 13 ) ( 3x + 7 )

0 = 15x^2 + 35x + 39x + 91

0 = 5x ( 3x + 7 ) + 13 ( 3x + 7 )

0 = ( 3x + 7 ) ( 5x + 13 )

3x + 7 = 0

3x = - 7

x = - 7 / 3

5x + 13 = 0

5x = - 13

x = - 13 / 5

ANSWER:

Therefore, there are two solutions to this problem. The answer is:

x = - 7 / 3

&

x = - 13 / 5

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