Question

Can someone help me? It's urgent and thank you!

Answer 1

Answer:

-4 and 5

Step-by-step explanation:

4*5 = x(x-1) ; cross multiply

20 = x²-x ; distribute multiplication over subtraction

x²-x-20 =0; subtract 20 from both sides

(x+4) (x-5) = 0; factor

x+4 =0 gives x = -4

x-5 =0 gives x = 5