(x+4)2+(x-4)2=2x(x-5)+8
Answers
Answered by
9
Answer:
- 12/5
Step-by-step explanation:
= > (x + 4)² + (x - 4)² = 2x(x - 5) + 8
= > (x² + 4² + 2*4*x) + (x² + 4² - 2*4*x) = 2x² - 10x + 8
= > x² + 16 + 8x + x² + 16 - 8x = 2x² - 10x + 8
= > 2x² + 32 = 2x² - 10x + 8
= > 2x² + 32 - 2x² + 10x - 8 = 0
= > 32 - 8 + 10x = 0
= > 24 + 10x = 0
= > 10x = - 24
= > x = - 24/10
= > x = -12/5
Answered by
0
Answer:
x=4 or x=-1
Step-by-step explanation:
2(x+4) + 2(x-4) = 2x(x-5)+8
2x + 8 + 2x - 8 = 2x² - 10x + 8
4x - 10x = 2x² + 8
-6x = 2x² + 8
2x² - 6x + 8 = 0
x² - 3x + 4 = 0
(x² + x) (-4x + 4) = 0
x(x+1) - 4 (x+1)
(x-4) (x+1)
x=4 or x=-1
pls mark my answer as brainliest
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