The solution to x^2– 10x = 24
7 or -7
2 + 2i or 2-2i
12 or -2

12 or -2

Step-by-step explanation:

x² - 10x - 24 = 0

x² - 12x + 2x - 24 = 0

x(x - 12) +2(x - 12) =0

(x - 12)(x + 2) = 0

x - 12 = 0 x = 12

x + 2 = 0 x = -2

12 or -2

Step-by-step explanation:

i just did this assignment

the next one is 7 or -7

after that is 2 + 2i or 2 - 2i

hope this helps! :)

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!