Question

Find zero of the polynomial 10x+15=-5​

Answer 1

ANSWER✔

$\sf\therefore 10x+15=-5$

$\sf\implies 10x+15+5=0$

$\sf\implies 10x+20=0$

$\sf\implies 10(x+2)=0$

$\sf\implies x+2= \dfrac{0}{10}$

$\sf\implies x= 0-2$

$\sf\implies x=-2$

$\large{\boxed{\bf{ \star\:\: x=-2\:\: \star}}}$

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Answer 2

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➡10x+15=−5

=> 10x+15+5=0

=> 10x+20=0

=> 10(x+2)=0

=> x+2= 0/10

=> x=0−2

=> x=−2 ✔

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