Question

if 3 is a zero of the quadratic polynomial x²-5x+c what is the value of c.?​

Answer 1

here u go...

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Answer 2

We find the zeroes of a polynomial p(x) using p(x)=0.

Here, p(x)=x

2

−2.

Then, p(x)=0

⟹ x

2

−2=0

⟹ x

2

=2

⟹ x=±

2

That is, x=

2

,x=−

2

.

Hence, the zeroes of p(x)=x

2

−2 are ±

2

.