Question

if x-2 is a factor of 2x² - x² - px - 2. Find the value of P and with the value of P, factorise completely​

Answer 1

Answer:

x-2=0

x=2

f(x)=2x²-x²-px-2

f(2)=2(2)²-(2)²-(p)(2)-2=0

f(2)=2×4-4-2p-2=0

f(2)=8-4-2p-2=0

f(2)=2-2p=0

f(2)=-2p=-2

f(2)=p=1

so the value of p =1

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