Question

(2х+7)(1-х)0

Answer 1

$(2x+7)(1-x) \geq 0\\\\ 1)\left \{ {{2x+7 \geq 0} \atop {1-x \geq 0}} \right. \\\\ 2)\left \{ {{2x+7 \leq 0} \atop {1-x \leq 0}} \right. \\\\ 1) x \geq -\frac{7}{2} ; \ \ \ x \leq 1 \\ 2) x \leq -\frac{7}{2} ; \ \ \ x \geq 1\\\\ -\frac{7}{2} \leq x \leq 1$

Answer 2

The expression you provided is (2x+7)(1-x) multiplied by 0. When any expression is multiplied by 0, the result is always 0. Therefore, the value of the expression (2x+7)(1-x) multiplied by 0 is 0.