How do you evaluate $(3 - 4 b) (2 (- 3) + 5 a)$ $(3- 4b ) ( 2( - 3) + 5a )$ if $a = - 1, b = - 2$ $a=-1, b=-2$ ?

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Answer 1 · 2017-01-30T08:59:53

Answer is $- 121$ $-121$

Substitute in the given values and you will get the answer
by putting given values of a and b

$= {3 - 4 (- 2)} {2 (- 3) + 5 (- 1)}$ $={3-4(-2)}{2(-3)+5(-1)}$

$= {3 - 4 (- 2)} \times {2 (- 3) + 5 (- 1)}$ $={3-4(-2)}xx{2(-3)+5(-1)}$

$= {3 + 8} \times {- 6 - 5}$ $={3+8}xx{-6-5}$

$= 11 \times - 11 = - 121$ $=11xx-11 =-121$

How do you evaluate (3−4b)(2(−3)+5a)(3- 4b ) ( 2( - 3) + 5a ) if a=−1,b=−2a=-1, b=-2?