Multiply the polynomials using the special product formulas. Express your

John Stewart

John Stewart

Answered question

2021-12-17

Multiply the polynomials using the special product formulas. Express your answer as a single polynomial in standard form.
(3x+y)(3x-4y)

Answer & Explanation

SlabydouluS62

SlabydouluS62

Skilled2021-12-18Added 52 answers

Step 1
Given:
(3x+y)(3x-4y)
We know that,
(a+b)(c+d)=ac+ad+bc+bd
3x(3x)+3x(4y)+y(3x)+y(4y)
9×3(4xy)+3xy4yy
9x212xy+3xy4y2
9x29xy4y2
Step 2
Therefore,
(3x+y)(3x4y)=9x29xy4y2

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