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MATH SOLVE
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Solve for xX^2+6x+9=20
4 months ago
Q:
Solve for xX^2+6x+9=20
Accepted Solution
A:
Answer:x = 1.47 or x = -7.47Step-by-step explanation:x²+6x+9=20This is a quadratic equationx²+6x+9-20=0x²+6x-11=0Step 1 : Write the quadratic formulax = -b±√b²-4(a)(c) 2aStep 2 : Substitute values in the formulaa = 1b = 6c = -11x = -6±√6²-4(1)(-11) 2(1)x = -6±√80 2x = -3 + 2√5 or x = -3 - 2√5x = 1.47 or x = -7.47!!