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90x^{2}-57x-12
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90x^{2}-57x-12
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\left(18x+3\right)\left(5x-4\right)
Use the distributive property to multiply 3 by 6x+1.
90x^{2}-72x+15x-12
Apply the distributive property by multiplying each term of 18x+3 by each term of 5x-4.
90x^{2}-57x-12
Combine -72x and 15x to get -57x.
\left(18x+3\right)\left(5x-4\right)
Use the distributive property to multiply 3 by 6x+1.
90x^{2}-72x+15x-12
Apply the distributive property by multiplying each term of 18x+3 by each term of 5x-4.
90x^{2}-57x-12
Combine -72x and 15x to get -57x.
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