Question

descompuneti in factori daca e posibil expresia a)x2-10x+21; b)6x2-11x+3 c)3x2+7x-6

Answer 1

a)$x^{2} -10x+21=(x-3)(x-7)$
b)$6 x^{2} -11x+3=6(x- \frac{1}{3})(x- \frac{3}{2})=(3x-1)(2x-3)$
c)$3 x^{2} +7x-6=3(x- \frac{2}{3})(x+3)=(3x-2)(x+3)$