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Barclay
Mathematics
2 December, 11:25
What are the solutions to the equation? 4x=32-x^2
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Dereon Figueroa
2 December, 11:39
0
4x = 32 - x^2
Subtract 4x from both sides and rearrange the equation:
-x^2 - 4x + 32 = 0
Use the quadratic equation x = - b + / - sqrt (b^2-4ac) / 2a
From the rewritten equation: a=-1, b = - 4 and c = 32
Solving for x you get x = - 8 and x = 4
The solutions are - 8 and 4
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Corinne Key
2 December, 11:39
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-8 and 4
Step-by-step explanation:
4x=32-x^2 x^2 + 4x - 32=0 x^2+4x+4 - 36=0 (x+2) ^2 - 6^2=0 (x+2+6) (x+2-6) = 0 x+8=0 ⇒ x = - 8 x-4=0 ⇒ x=4
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