show that X equals to 1 is a root of the polynomial 2 x cube minus 3 X square + 7 x minus 6
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p(x)=2x³-3x²+7x-6
p(1)=2(1)³-3(1)²+7(1)-6 [given; value of x=1]
p(1)=2(1)-3(1)+7-6
p(1)=2-3+7-6
p(1)=9-9
p(1)=0
hence, shown, x=1 is the root of the given polynomial .
I hope this helps you:-)
p(1)=2(1)³-3(1)²+7(1)-6 [given; value of x=1]
p(1)=2(1)-3(1)+7-6
p(1)=2-3+7-6
p(1)=9-9
p(1)=0
hence, shown, x=1 is the root of the given polynomial .
I hope this helps you:-)
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