factorize 4x^2-12x+7=0
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Answer:
4x^2-14x+2x+7
2x(2x-7)-1(2x+7)
(2x-7)(2x-1)
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4x²-12x+7 = 0
(Here, a=4, b= -12, c=7 and ac=28)
= 4x²-14x+2x+7 = 0
= 2x(2x+7) + 1(2x+7) = 0
= (2x+1) (2x+7) = 0
= 2x+1 = 0 2x+7 = 0
= 2x = 0-1 2x = 0-7
= 2x = -1 2x = -7
= x = -1/2 x = -7/2
So, the value of x = -1/2 , -7/2
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