Question

1. (х-3,7) • (х+3) =0
2. х•(х+4) • (3,2-х)=0

Answer 1

(х-3,7) • (х+3) =0

$(x-\frac{37}{10})*(x+3)=0$

$x-\frac{37}{10} =0\\x+3=0$

$x=\frac{37}{10} \\x=-3$

$x_{1}=-3\\x_{2}=\frac{37}{10}$

х•(х+4) • (3,2-х)=0

х•(х+4) • ($\frac{16}{5}$-х)=0

x=0

x+4=0

$\frac{16}{5}-x=0$

x=0

x=-4

x=$\frac{16}{5}$

$x_{1}=-4; x_{2}=0; x_{3}=\frac{16}{5}$