Check whether p(x) is multiple of g(x) or not:
i) p(x) = 2√2x³- 5√2x²+ 7√2,g(x) =x+1
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→p(x)=2√2x³-5√2x²+7√2
→g(x)=x+1.
Let g(x)=0.
=> x+1=0
.°. x =-1.
Putting this value in p(x)
=>p(-1)=2√2(-1)³-5√2(-1)²+7√2.
=>p(-1)=-2√2-5√2+7√2
=>p(-1)=7√2-7√2.
.°. p(-1)=0.
Hence p(x) is a multiple of p(x).
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ANSWER ::
The zero of the polynomial x + 1 is given by
x + 1 = 0
= 0
So x = - 1
P(x) = 2√2x³- 5√2x²+ 7√2
Now by the Remainder Theorem the required Remainder is
P(-1) = 2√2 (-1)³- 5√2(-1)²+ 7√2 = - 2√2- 5√2+ 7√2 = 0
So g(x) is a multiple of P(x)
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