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By factoring, identify the zeros of the quadratic function f (x) = x²-9x-22

User Couka
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1 Answer

15 votes
15 votes

Answer:

x= -2, x= +11

Explanation:

I hope this is right!

To factorise, we need two numbers that add to make -9 and multiply together to make -22.

2 - 11 works, so we put it in the brackets in this order.

(x + 2) (x - 11)

so x + 2 = 0 and x - 11 =0

but we could also simplify this to say that x could be either -2 or + 11.

I hope this helps.

Have a lovely day.

User Hitokage
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