Evaluate
-\left(b+3\right)\left(2b^{2}+9\right)
Expand
-2b^{3}-6b^{2}-9b-27
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\left(-9-2b^{2}\right)\left(b+3\right)
Combine -3b^{2} and b^{2} to get -2b^{2}.
-9b-27-2b^{3}-6b^{2}
Use the distributive property to multiply -9-2b^{2} by b+3.
\left(-9-2b^{2}\right)\left(b+3\right)
Combine -3b^{2} and b^{2} to get -2b^{2}.
-9b-27-2b^{3}-6b^{2}
Use the distributive property to multiply -9-2b^{2} by b+3.
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