Question

Simplify -3b (ab + b2) + 300 and find its values for a = 3 and b = 4.
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Answer 1

Step-by-step explanation:

= -3(4) (3×4+ 4²)+300

= -12(12+16)+300

= -12(28)+300

= -336+300

= -36 is the answer

Answer 2

Step-by-step explanation:

-3b ( ab + b²) + 300

Substituting  the values stated in the question.

-3(4) ( 3 x 4 + (4)² + 300

-12 ( 12 + 16 ) + 300

-12(28) + 300

-336 + 300 (As the negative Number is greater, we know that the answer will be in the negative form).

-36 is the suitable answer

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