Question

1. Solve: (x-4)²– (x+4)² = 48. The value of x is
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Answer 1

Answer:

x = - 3

Step-by-step explanation:

( (x)^2+(4)^2-2(x)(4) ) - ( (x)^2 +(4)^2+2(x)(4) ) = 48

(x^2 + 16 - 8x ) - (x^2 + 16 + 8x ) = 48

x^2 + 16 - 8x - x^2 -16 -8x = 48

-8x-8x = 48

-16x = 48

x = 48/-16

x = -3

I HOPE THAT THIS WILL HELP YOU .

Answer 2

Answer:

x= (-3)

Step-by-step explanation:

= (x-4)² - (x+4)² = 48

= (x²+4²-2(x)(4)) - (x²+4²+2(x)(4)) =48 (using (a+b)²)

= x² + 16 - 8x - x² -16 - 8x = 48

Cancelling positives and negatives gives:-

-8x -8x = 48

-16x = 48

x= 48/-16

x = -3

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