2 years ago

Help.this question ha sbeen egttin on my nerves for days

Mathematics

1 answer:

pogonyaev2 years ago

8 0

Answer: 8y4+25y3+60y2+10y+7

Step-by-step explanation:

(y2+3y+7)(8y2+y+1)

=(y2+3y+7)(8y2+y+1)

=(y2)(8y2)+(y2)(y)+(y2)(1)+(3y)(8y2)+(3y)(y)+(3y)(1)+(7)(8y2)+(7)(y)+(7)(1)

=8y4+y3+y2+24y3+3y2+3y+56y2+7y+7

=8y4+25y3+60y2+10y+7

hope this helps!:)

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One way to build stairs is to attach triangular blocks to an angled support, as shown at the right. If the support makes a 32Â°

Sauron [17]

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