Factoring x^2 +bx + c
"Now this gets harder, Jeremy."
"Why?"
"It just does."
"Here is an example:"
X^2 + 13x + 36
"The trick is to find two numbers that you can add to get the middle
number, or in this case 13 that you can multiply to get the last
number, or in this case 36".
"So that would make the answer, what?" "Yes Richard?"
"Wouldn't it be 4 and 9."
"Yes it would be but the answer would be (x+4)(x+9) becasuse the
variable is x". "We can also check this answer with FOIL." Click
Here.
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