3 years ago

What is the polynomial 3y^2+(y+7)^2-15 after it has be simplified

Mathematics

1 answer:

kogti [31]3 years ago

4 0

Answer:

4y^(2)+14y+31

Step-by-step explanation:

First you need to do (y+7)(y+7)

y^2+7y+7y+49

y^2+14y+49

Add it all together

y^2+14y+49+3y^2-15

4y^(2)+14y+31

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