Question

Q.19 Which are the following
roots of quadratic equation x?
+ X - 20 = 0​

Answer 1

Answer:

so the question is x^2 + x -20

Step-by-step explanation:

now lets split the middle terms

x^2 +5x-4x-20 { because 5into 4 is 20}

so now take common and do grouping

x{x+5}- 4{x+5}

{x-4}{x+5}

thus your roots are

4 and -5