Question

the number of zeroes of polynomial 3x^2-2x^2+x-1 is​

Answer 1

Answer:

Let p(x) = 3x^2 + 2x - 1

Let's take x = 1

p(1) 3 (1)^2 + 21-1

= 3 1 +2 -1

= 3+2-1

= 5-1

= 4 * 0

Let's take x = -1

p(-1) = 3(-1)^2 + 2(-1) - 1

= 3'1-2-1

= 3-2-1

=0

Therefore p(-1) is a zero of the polynomial 3x^2 + 2x -1

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