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laila [671]
4 years ago
9

2x^2 + 8x -10\ 2x^2 + 14x + 20=4

Mathematics
1 answer:
kodGreya [7K]4 years ago
8 0
Answer: x=-3 or x=-5
(2x^2 + 8x -10)\( 2x^2 + 14x + 20)=4
2x^2 + 8x -10=( 2x^2 + 14x + 20)×4
2x^2 + 8x -10=8x^2 + 56x + 80
8x^2 + 56x + 80-(2x^2 + 8x -10)=0
8x^2 + 56x + 80-2x^2 - 8x +10=0
6x^2 +48x +90=0
6(x^2 +8x +15)=0
x^2 +8x +15=0
(x+3)(x+5)=0
(x+3)=0 or (x+5)=0
x=-3 or x=-5






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to switch into y=mx+b form do this:

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