Question

pls solve it, urgent​

Answer 1

Answer:

The other factor will be (x-4)

Step-by-step explanation:

Use middle term splitting and you can get the answer.

Check the attachments

Answer 2

ANSWER :–

Factor => (x - 4)

Given :–

A quadratic equation x² + x - 20 = 0 have one factor (x+5) .

TO FIND :–

Another factor of quadratic equation.

Solution :–

• We should write a quadratic equation as factor form –

=> ax² + bx + c = a(x - p)(x - q) [ where p,q are roots]

• So that –

=> x² + x - 20 = 1(x - p)(x - q)

• But it's one root is x = - 5 .

=》 So that –

=> x² + x - 20 = (x + 5) (x - q) ........(1)

=> x² + x - 20 = x² + 5x - qx - 5q

• Now compare –

=> q = 4

• Now put q = 4 in equation (1) –

=> x² + x - 20 = (x + 5) (x - 4)

=》 Another factor is (x - 4).

● Hence , Option (A) is correct .