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MATH SOLVE
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Let m=5x-2.Which equation is equivalent to (5x-2)^2+35x-14=-12A. m^2-7m+12=0B. m^2+7m-2=0C. m^2-7m-2...
4 months ago
Q:
let m=5x-2.Which equation is equivalent to (5x-2)^2+35x-14=-12A. m^2-7m+12=0B. m^2+7m-2=0C. m^2-7m-2=0D. m^2+7m+12=0
Accepted Solution
A:
Answer:DStep-by-step explanation:given(5x - 2)² + 35x - 14 = - 12 ← factor out 7 from 35x - 14(5x - 2)² + 7(5x - 2) = - 12 ( add 12 to both sides )(5x - 2)² + 7(x - 2) + 12 = 0 ← substitute m = 5x - 2, hencem² + 7m + 12 = 0 → D