Question

3.2x+(-1.2)*x+2.7=-4.9

-5.6x+2.9x-3.86=-9.8

Answer 1

\(3.2\times x\left(-1.2\right)\times x+2.7=-4.9\) câu a nhé

\(-5.6\times x+2.9\times x-3.86=-9.8\) câu b nhé

cảm ơn các bạn nhìu

Answer 2

3.2x+(-1.2)*x+2.7=-4.9

(3.2+(-1.2)*x=-4.9-2.7

2*x=-76

x=-76/2

x=-38

Answer 3

-5.6*x+2.9*x-3.86=-9.8

(-5.6+2.9)*x=-9.8+3.86

-27*x=-5.94

x=-5.94/-27

x=0.22

Answer 4

bai nauy minh duoc diem 10