1.

Find the zeros of the quadratic polynomial x2+x-30​

Answer»

EXPLANATION.

Quadratic equation.

⇒ x² + X - 30.

As we know that,

Factorizes the equation into middle TERM splits, we get.

⇒ x² + 6x - 5x - 30 = 0.

⇒ x(x + 6) - 5(x + 6) = 0.

⇒ (x - 5)(x + 6) = 0.

⇒ x = 5 and x = -6.

                                                                                                                         

MORE INFORMATION.

Conjugate roots.

(1) = If D < 0.

One roots = α + iβ.

Other roots = α - iβ.

(2) = If D > 0.

One roots = α + √β.

Other roots = α - √β.


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