Multiply and Simplify: (x + 4)(x + 3)

Question

anonymous · Answer

2xy(7z + 12y)

anonymous · Answer

that is not right

anonymous · Answer

12x^2

anonymous · Answer

$$\huge Use \ (x+a) (x+b)=x^2+ax+bx+ab \ \huge  = x^2 + 4x + 3x + 12 $$

anonymous · Answer

@rannsan  do u get that

aripotta · Answer

that's FOIL, right? i think it would be better if you explained what exactly to do rather than giving an equation, but that's just me

anonymous · Answer

I did not get that

aripotta · Answer

you have to use FOIL. First times First, Outer times Outer, Inner times Inner, and Last times Last

anonymous · Answer

1 multiply the first numbers in both the parenthesis x & x 

 2 multiply the outer numbers in both parenthesis ( x & b)

 3 multiply the inner numbers (x&a)

 4 multiply the last numbers ( a &b)
Source(s): wiki

anonymous · Answer

ok this is gonna sound really stupid on my part but how can I multiply if I don't know what x is?

aripotta · Answer

|dw:1348910674893:dw|
x times x equals 2x