How do you use FOIL to multiply (x+h) (x+h)?

[ad_1]

##(x+h)(x+h) = F + O + I + L##

##= (x*x) + (x*h) + (h*x) + (h*h)##

##=x^2 + 2hx + h^2##

FOIL is a advantageous mnemonic to succor you mind all the combinations to enrich when enriching two binomials.

In analysis, if the binomials are twain in type ordain, then FOIL tends to cluster the conditions in a succorful way.

To enrich ##(x+h)(x+h)## add concurrently each of the products:

First : ##x*x = x^2## Outside : ##x*h = hx## Inside: ##h*x = hx## Last: ##h*h = h^2##

Added concurrently:

##x^2+hx+hx+h^2 = x^2+2hx+h^2##

Show further

[ad_2]
Source be-mixed