Question

zeros of the polynomial X square+2x-143

Answer 1

Answer:

Finding the zeros of the quadratic polynomial by middle term splitting method.

To find the zeros of the polynomial,

equate it to zero.

Thus, we have;

=> x^2 + 2x - 143 = 0

=> x^2 + 13x - 11x - 143 = 0

=> x(x + 13) - 11(x + 13) = 0

=> (x + 13)(x - 11) = 0

Case(1),

When , (x + 13)=0

Then, x = - 13

Case (2),

When, (x - 11) = 0

Then, x = 11.

Hence, the zeros of the given quadratic polynomial are: 11 and -13.

Answer 2

Answer:

Q. → find the zeros of the polynomial

x^2 + 2x- 143 .

given polynomial

=> x^2 + 2x- 143 = 0

=> x^2 + 13x - 11x- 143 = 0

=> x(x+ 13) - 11( x+ 13) = 0

=> (x+13)(x - 11)=0

I) if (x+ 13)= 0

x= -13

II) if ( x - 11)= 0

x= 11

so ,

-13,11 are the zeros of the given polynomial.