A few days ago
me

# How do you do this?–MATH!!!!!!!?

Ok I’m not sure if this is right…. I’m getting confised.

This is 8th grade Algebra 1 btw

(4x+3)(4x+3)

so here’s what I did

(4x+3)^2

(4x)^2 + 3^2 + 2(3)(4x)

16x^2 + 9 + 24x

I have a felling this is wrong… help.

A few days ago
Anonymous

You did it right!

4x(4x) +4x(3) +3(4x) +3(3)

Then you have to multiply the terms.

16x²+12x+12x+9

Combine like terms.

16x²+24x+9

1

A few days ago
John C
It’s right, but seemingly for the wrong reason. Use FOIL (first – outer – inner – last)

first : 4x * 4x, so 16x^2

outer: 4x * 3, so 12x

inner: 3 * 4x, so 12x

last: 3 * 3, so 9

add all the terms and you get: 16x^2 + 12x + 12x +9

combine like terms to get : 16x^2+24x+9

0

A few days ago
996
16x^2+24x+9 is the right answers because if you use F.O.I.L, the 4x times 4x gives you 16x, the 4x times 3 gives you 12x, and you have two sets of 4x times 3, and then you have the 3×3=9. So 16x^2+24x+9 is right even though you can write is as what you wrote.
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A few days ago
Nicholas R.
(4x+3)(4x+3)

= (4x*4x) + (4x*3) + (3*4x) + (3*3)

=16x^2+12x+12x+9

=16x^2+24x+9

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A few days ago
Chris F