solve for x: root 2 X + 9 + X = 13
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Answered by
7
√2x+9 + x = 13
√2x+9 = 13-x
squaring both sides
2x + 9 = (13-x)²
2x+9 = 169 - 26x + x²
2x +26x +9 - 169 = x²
28x-160 = x²
by using factorization method
x²-28x+160 = 0
x² - 20x - 8x +160 = 0
x(x-20) -8(x-20) = 0
(x-20)(x-8) = 0
x = 20 and x= 8
hope it help
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Answered by
2
2x+9+X=13
3x+9=13
3x=13-9
3x=4
X=4/3....
ajay130pror1:
it's not correct
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