What is the standard form of # y= (x + 3)(x + 4) #?
A polynomial is in standard form if it is written with all the
It's typically written as
Standard form is useful because it generalizes how to find the roots of any quadratic equation through the quadratic formula (
In your case, to find the standard version of the equation, distribute the two binomials through the " FOIL " method.
FOIL stands for F irst, O uter, I nner, L ast. These are the four different combinations of terms you can multiply when you have two binomials.
First: multiply the first term in each binomial
Outer: multiply the terms on the outside
Inner: multiply the terms on the inside
Last: multiply the last term in each binomial
Now, add all the different products.
Combine like terms.
This is in the standard form of the quadratic equation