Question

Find the value (-21) (-5) - (- 7) (-5)+ 81(- 9)​

Answer 1

Solution:-

→ (-21)(-5)-(-7)(-5)+81(-9)

→ -26+7+81-14

→ -26-14+7+81

→ -40+88

→ 48

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Answer 2

${\huge{\boxed{\underline{\rm{\color{turquoise}{★ Answer:}}}}}}$

${ \tt{= (-21)(-5) - (-7)(-5) + 81(-9)}}$

${ \tt{= 105 - 35 -729}}$

${ \boxed{ \tt{= -659 }}}$

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