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2 Answers

Hi Again Craig;
(3x+4)2
This is...
(3x+4)(3x+4)
We are going to FOIL...
FIRST...(3x)(3x)=9x2
OUTER...(3x)(4)=12x
INNER...(4)(3x)=12x
LAST...(4)(4)=16
 
9x2+12x+12x+16
9x2+24x+16
(3 x+4)^2 = (3 x+4)(3 x+4)
 Using the foil rule
 
ind the product: (3x + 4)(3x +4)
Use FOIL:
F: 3 x*3 x=9 x^2
O: 3x*4 = 12x
I: 4*3 x = 12 x
L: 4*4 = 16
Combine these products to get:
19 x^2+24 x +16

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