Question

5x2-87x+378=0

Answer 1

use quadratic formula

Answer 2

(x_9)(5x-42)

Answer 3

please explain detailed

Answer 4

i get (x-9)(5x-42)=0 after step

Answer 5

factorise 5x2-87x+378
u will get:
(x-9)(5x-42)
so, (x-9)(5x-42)=0
so, one of these terms has to be 0
so, x=9 or 42/5

Answer 6

x=9 or 42/5

Answer 7

Thank you very much for the answer to all

Answer 8

5x2-87x+378=0
5x2 - 42x - 45x + 378 =0
x(5x-42) - 9(5x-42) =0
(5x-42)(x-9) =0

so 5x-42=0 or x-9=0
x=42/5 x=9