Question

Плиз!!! РЕШИТЬ УРАВНЕНИЯ:
a)3-(4x+1)(3-x)=x²
б)x²-(2x-3)(1-x)=3

Answer 1

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Answer 2

A)3-12x+4x^2-3+X-x^2=0 3x^2-11x-0=0 D=121=11 x1=(11+11)/2=11 X2=(11-11)/2=0 Б)x^2-2x+2x^2+3-3x-3=0 3x^2-5x-0=0 D =25=5 x1=(5+5)/2=5 X2=(5-5)/2=0