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x2-7x+ 12x 3= 0, then which of the following is the value of x?(1) 4 (2) 0 (3) -4 (4) 3 |
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Answer» x^2-7x+12 =x^2-3x-4x+12=x(x-3)-4(x-3)=(x-4)(x-3) Dividing it by (x-3) we are left with (x-4) So x-4=0 x=4 So option (1) |
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