Question

(х+7)(2-5х)=0




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Answer 1

$(x + 7)(2 - 5x) = 0 \\ x + 7 = 0 \qquad 2 - 5x = 0 \\ \boldsymbol{ x_1 = - 7} \qquad 5x = 2 \\ \qquad \qquad \qquad \boldsymbol{x_2 = 0.4}$