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Direstalker

Write the expession 5x²-4-3x²+6x+8-5x-13 in its simplifed form. Find its value when x=-2​

answers: 1
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Answer:

2x²+ x - 9= 0

value = -3

5x²-4-3x²+6x+8-5 x-13= 0

2x²+x - 9= 0

x= -2,

2(-2)²+ (-2) -9= 0

2×4-2-9=0

8-2-9=0

-3=0

0= -3

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Zhelyazko
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