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The multiplication of two terms and can be solved by FOIL's method.

First multiply 5x of first term to 4x of second term gives 20x

Multiply 5x of first term to -1 of second term gives -5x.

Multiply -2 of first term to 4x of second term gives -8x.

Multiply -2 of first term to -1 of second term gives 2.

The multiplication of two terms and can be solved by FOIL's method.

First multiply x of first term to x of second term gives x

Multiply x of first term to -2 of second term gives -2x.

Multiply -3 of first term to x of second term gives -3x.

Multiply -3 of first term to -2 of second term gives 6.