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Mathematics 11 Online
OpenStudy (anonymous):

What is the remainder when x^2 – 5x – 22 is divided by x + 3? 6 –16 –48 2

OpenStudy (welshfella):

use the remainder theorem replace the x in x^2 - 5x - 22 with -3 and work it that is your remainder

OpenStudy (welshfella):

remainder = (-3)^2 - 5(-3) - 22

OpenStudy (anonymous):

-16

OpenStudy (welshfella):

(-3)^2 = -3 * -3 = what

OpenStudy (welshfella):

9 right so its 9 - 5(-3) - 22 remember a negative times a negative = positive

OpenStudy (welshfella):

iys not -16

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