Question

The zeros of the polynomial 3x^2 + 11x - 4 are

Answer 1

Answer:

Hope it will satisfy you

Answer 2

Answer:

1/3 and -4 are the zeroes of polynomial 3x^2 + 11x - 4 .

Step-by-step explanation:

The Zeroes of Polynomial can be found using

MIDDLE TERM FACTORISATION

STEPS:-

1. Multiply the first and Last term
2. See which factors match with second factor
3. Divide the middle term
4. Factorise

We have:-

3x^2 + 11x - 4

So 3*4 = 12, Factors of 12 applicable here are 1 and 12.

So we have now

3x^2 + 12x-1x - 4

= 3x(x+4)-1(x+4)------------------------(Taking 3x common and -1 common)

= (3x-1)(x+4)

• So we first take the first factor 3x-1

        3x-1=0

        3x=1

x= 1/3 is first zero.

• Now we take the second factor

x+4=0

x= -4 is the second zero.