Is it possible to factor $y=x^2+9x-22$ ? If so, what are the factors?

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Answer 1 · 2016-02-17T01:45:38

Yes, it is possible to factor this trinomial

When we want to factor trinomials of the form $y = ax^2 + bx + c, a = 1$ , we must find two numbers that multiply to c and that add to b.

Two numbers that multiply to -22 and that add to 9 are $+11 and -2$ .

$y = x^2 + 9x - 22 -> y = (x + 11)(x - 2)$

**Practice exercises: **

Find out whether it is possible to factor the following trinomials. If so, factor them.

a) $y = x^2 + 5x + 4$

b) $y = x^2 + 4x + 5$

c) $y = x^2 - 4x - 5$

d) $y = x^2 + 4x - 5$

e) $y = x^2 + 10x + 25$

f) $y = x^2 + 10x - 25$

g) $y = x^2 - 10x + 25$

Good luck!

Is it possible to factor y=x^2+9x-22 y=x^2+9x-22 ? If so, what are the factors?