Question

Simplify( (x - 5)(x + 2) )+ 3x + 10 =
​

Answer 1

$\large\sf\underline{✰\:Question}$

• Simplify : [ (x - 5)(x + 2) ]+ 3x + 10 = 0

$\large\sf\underline{✰\:Solution}$

$\sf➪\:[ (x - 5)(x + 2) ]+ 3x + 10 = 0$

$\sf➪\:[ x^{2}+2x-5x-10 ]+ 3x + 10 = 0$

$\sf➪\:x^{2}+2x-5x-10 + 3x + 10 = 0$

$\sf➪\:x^{2}-3x-10 + 3x + 10 = 0$

$\sf➪\:x^{2}-3x+3x-10 + 10 = 0$

$\sf➪\:x^{2} = 0$

$\sf➪\:x = \sqrt{0}$

$\sf➪\:x = 0$

• Thnku ❣

Answer 2

$\sf \bf \huge {\boxed {\mathbb {QUESTION}}}$

$\sf Simplify$

$\sf \bf \Big[\big(x-5 \big) \big(x+2\big)\Big]+3x+10$

$\sf \bf \huge {\boxed {\mathbb {ANSWER}}}$

$\sf \bf\implies \Big[\big(x-5 \big) \big(x+2\big)\Big]+3x+10$

$\sf \bf\implies \Big[x\big(x+2\big)-5\big(x+2\big)\Big]+3x+10$

$\sf \bf\implies \Big[{x}^{2}+2x-5x-10 \Big] +3x+10$

$\sf \bf\implies \Big[{x}^{2}-3x-10\Big] +3x+10$

$\sf \bf\implies {x}^{2}\cancel{-3x} -10\cancel {+3x} +10$

$\sf \bf\implies {x}^{2}\cancel {-10}\cancel {+10}$

$\implies {\boxed {\boxed {\color {blue} {\sf \bf {x}^{2}}}}}$

$\sf \bf \huge {\boxed {\mathbb {HOPE \:IT \:HELPS \:YOU}}}$

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$\sf \bf \huge {\boxed {\mathbb {EXTRA\:INFORMATION}}}$

${\color {green} {\sf Identities}}$

$\sf \bf {(a+b)}^{2}={a}^{2}+2ab+{b}^{2}$

$\sf \bf {(a-b)}^{2}={a}^{2}-2ab+{b}^{2}$

$\sf \bf (a+b) (a-b) ={a}^{2}-{b}^{2}$