Срочно1)-4x=7x^22)X²+x=90

Question

Срочно1)-4x=7x^22)X²+x=90

Answer 1

-х(4+7х)=0

х=0 и 4+7х=0

7х=0-4=-4

х=-4÷7=-4/7

[tex]2)x(x + 1) = 90 \\ x = 0 \\ x + 1 = 90 \\ x = 90 - 1 \\ x = 89" alt="1) - 4х-7х^2=0

-х(4+7х)=0

х=0 и 4+7х=0

7х=0-4=-4

х=-4÷7=-4/7

[tex]2)x(x + 1) = 90 \\ x = 0 \\ x + 1 = 90 \\ x = 90 - 1 \\ x = 89" align="absmiddle" class="latex-formula">