How do you multiply (4x+3)(5x2)?

2 Answers
Jun 23, 2017

20x2+7x6

Explanation:

(4x+3)(5x2)

You proceed to FOIL it:

Where you multiply the first term with the outer term then you multiply the first term with the inner term:

(4x)(5x)=20x2

(4x)(2)=8x

Now you multiply the last term with the outer term then you multiply the last term with the inner term:

(3)(5x)=15x

(3)(2)=6

Now combine them:

20x28x+15x6

Simplify:

20x2+7x6

Jun 23, 2017

You would have to FOIL it up.
To be exact it is F2O2I2L2 or square foil.
FirstXFirst; OuterXOuter; InnerXInner; LastXLast.

Explanation:

We will use this example: (4x+3)(5x2) using square foil

FXF: 4x×5x=20x2

OXO: 4x×2=8x

IXI: 3×5x=15x

LXL: 3 xx -2 = -6

Then re-assembling: (4x+3)(5x2)=20x28x+15x6

(4x+3)(5x2)=20x2+7x6