Question

СРОЧНООООООООО ОЧЕЕЕЕНЬ

Answer 1

$(x - 2.5)(x + 3.7) = 0 \\ x_{1} = 2.5 \\ x_{2} = - 3.7 \\ \\ - 7x = 56 \\ x = 56 \div ( - 7) \\ x = - 8$