2 years ago

For what value of x is...

Mathematics

2 answers:

lianna [129]2 years ago

5 0

Answer:

x = 6

Step-by-step explanation:

<u>Set the equation and solve for x:</u>

(x + 1)² = (x - 3)² + 120
x² + 2x + 1 = x² - 6x + 9 + 120
2x + 6x = 129 - 1
8x = 128
x = 128/8
x = 6

Luda [366]2 years ago

3 0

Lets , find the value of x :

$→(x + 1)² = (x - 3)² + 120$

$→x² + 2x + 1 = x² - 6x + 9 + 120$

$→2x + 6x = 129 - 1$

$→8x = 128$

$→x = \frac{128}{8}$

$→x = 6$

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