Question

5 x square + 4 x is equal to zero solve by factorization

Answer 1

5x2+4x=0
X(5x+4)=0
So,x=0,x= -4/5

Answer 2

$Given \: Quadratic \: Equation : \\5x^{2} + 4x = 0$

$\underline {\blue{ Factorisation \: method : }}$

$5x^{2} + 4x = 0$

$\implies 5x\times \pink {x} + 4 \times \pink {x} = 0$

/* Take x common , we get */

$\implies \pink {x} ( 5x + 4) = 0$

$\implies \pink {x} = 0 \:Or \: 5x + 4 = 0$

$\implies \pink {x} = 0 \:Or \: 5x = - 4$

$\implies \pink {x} = 0 \:Or \: x = \frac{- 4}{5}$

Therefore.,

$\green { \pink {x} = 0 \:Or \: x = \frac{- 4}{5}}$

•••♪