If $a = - 6$ and $b = 7$ , then $4 a (3 b + 5) + 2 b =$ ?

638

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624

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610

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- 610

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- 638

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Solution

The correct option is D $- 610$
Given, $a = - 6$ and $b = 7$
We get $4 a (3 b + 5) + 2 b$ $= 4 (- 6) (21 + 5) + 14$
$= 14 - 24 \times 26$
$= 14 - 624$
$= - 610$

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If a=−6 and b=7, then 4a(3b+5)+2b=?

The correct option is D −610Given, a=−6 and b=7We get 4a(3b+5)+2b =4(−6)(21+5)+14=14−24×26=14−624=−610

If $a = - 6$ and $b = 7$ , then $4 a (3 b + 5) + 2 b =$ ?

The correct option is D $- 610$
Given, $a = - 6$ and $b = 7$
We get $4 a (3 b + 5) + 2 b$ $= 4 (- 6) (21 + 5) + 14$
$= 14 - 24 \times 26$
$= 14 - 624$
$= - 610$