Question

When x = 4 and y = 1 , find the value of expression x ( xy) - 3 xy +5 *​

Answer 1

Answer:

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Step-by-step explanation:

Answer 2

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

$\sf \bf x = 4 \\ y=1$

$\sf \bf x(xy) - 3xy+5$

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

$\sf \bf\implies x(xy) - 3xy+5$

$\sf \bf\implies x = 4 \\ y=1$

$\sf \bf {Substitute\: the\: values}$

$\sf \bf\implies 4(4 \times 1) - 3(4 \times 1)+5$

$\sf \bf\implies 4(4) - 3(4)+5$

$\sf \bf\implies 16-12+5$

$\sf \bf\implies 21-12$

$\sf \bf \implies {\boxed {\boxed {9}}}$

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

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

$\tt \bf {Identities}$

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

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

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

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