Question

Using a factor theorem find whether x-5 is a factor of 2x³-5x²-28x+15

Answer 1

Answer:

yes ,It is a factor

Step-by-step explanation:

x-5=0

x=5

2x³-5x²-28x+15

Putting the value x=5 in equation

2(5)³-5(5)²-28(5)+15

2(125)-5(25)-140+15

250-125-140+15

265-265=0

hence,x-5 is a factor

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