solving quadratics by factoring

1.) what 2 number multiply to be 4 and add to be 5

2.) what two numbers multiply 16 but adds to be 14

3.) graph point ( 0,5) & (5,0)

The greatest common factor, or GCF, is the greatest factor that divides two numbers. To find the GCF of two numbers: List the prime factors of each number. Multiply those factors both numbers have in common. for example:

A "quadratic" is a polynomial that looks like "ax2 + bx + c", where "a", "b", and "c" are just numbers. For the easy case of factoring, you will find two numbers that will not only multiply to equal the constant term "c", but also add up to equal "b", the coefficient on the x-term. For instance: Factor x2 + 5x + 6.

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