Question

Using factor theorem to factorise x^3+2x^2-5x-6​

Answer 1

Step-by-step explanation:

p(x)= x³+ 2x²- 5x - 6

p(2)= 2³ + 2×2² - 5×2 - 6

( u have to substitute the x with 2)

* it can be any number other than 2 too*

p(2) = 2³ + 2×2² - 5×2 -6

= 8 + 8 - 10 - 6

= 16 - 10 - 6

= 6 - 6

= 0

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