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3 years ago

4x(x + 3) +7x = what is the answer please

Mathematics

2 answers:

wel3 years ago

5 0

4x^2+12x+7x
4x^2+19x

Was it meant to equal something or are you just simplifying the equation?

Lapatulllka [165]3 years ago

5 0

First you need to expand it by multiplying what is in the brackets by what is in front of them so it would become:
4x*x=4x^2 and 4x*3= 12x so it is 4x^2+12x+7x
Now we can simplify by adding the like terms (the terms with the same variable) So it is:
12x+7x=19x
4x^2+19x

Hope this helps :)

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Putting values of $x^2$ and $y^2$ from [2] and [3 in [1].

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