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93x^{2}+136x+56
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93x^{2}+136x+56
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9x^{2}-4x+84x^{2}+140x+56
Use the distributive property to multiply 28 by 3x^{2}+5x+2.
93x^{2}-4x+140x+56
Combine 9x^{2} and 84x^{2} to get 93x^{2}.
93x^{2}+136x+56
Combine -4x and 140x to get 136x.
9x^{2}-4x+84x^{2}+140x+56
Use the distributive property to multiply 28 by 3x^{2}+5x+2.
93x^{2}-4x+140x+56
Combine 9x^{2} and 84x^{2} to get 93x^{2}.
93x^{2}+136x+56
Combine -4x and 140x to get 136x.
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