Question

if x^3-8x+15=(x+p)(x+q)then what is the value of p and q​

Answer 1

Answer:

Step-by-step explanation:

answer

Answer 2

Given x4+px3+2x2−3x+q is divisible by x2−1

             x2+px+3

        _____________

x2−1)x4+px3+2x2−3x+q

          x4                  −x2

        _____________________

                px3+3x2−3x

                px3            −px

              _______________________

                            3x2+(p−3)x+q

                            3x2−3

                        _____________________

                                       (p−3)x+(q+3)

If above expression is completely divisible then remainder should be zero.

then p−3=0

q+3=0

∴[p−3] & [q=−3].



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