Question

90x-x^2-1800=0




please solve this with steps its urgent​

Answer 1

Answer:

Given,
90x-x^2-1800 = 0

On rearranging the terms we get,

-x^2+90x-1800 = 0

Taking -1 common we get,

=> -1 (x^2-90x+1800) = 0

=> x^2-90x+1800 = 0/(-1) = 0

=> x^2 - 30x - 60x +1800 = 0 (By splitting the middle term)

=> x(x-30) - 60(x-30) = 0

=> (x-60)(x-30) = 0

=> x = 30, 60

Answer 2

Answer:

Step-by-step explanation:

Given that,

90x - x² - 1800 = 0

x² - 90x + 1800 = 0 ( ∵ taken " - " as common )

x² - 30x - 60x + 1800 = 0

x ( x - 30 ) - 60 ( x - 30 ) = 0

( x - 30 ) ( x - 60 ) = 0

x = 30 or 60 is the answer.