3 years ago

Help please, multiply biomials(4-7y)(7+4y)

Mathematics

1 answer:

creativ13 [48]3 years ago

5 0

Answer:

see explanation

Step-by-step explanation:

(4 - 7y)(7 + 4y)

Each term in the second factor is multiplied by each term in the first factor, that is

4(7 + 4y) - 7y(7 + 4y) ← distribute parenthesis

= 28 + 16y - 49y - 28y² ← collect like terms

= 28 - 33y - 28y² or

- 28y² - 33y + 28 ← in standard form

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