Question

De las soluciones de la siguiente ecuación: x2 + 8x − 30 = 18? Cual es el numero de mayor valor Entre.

Answer 1

The correct answer is "x = 4" and "x = -12".

Explanation:

The given equation is:

⇒
`x^2+8x-30=18`

On subtracting "18" from both sides, we get

⇒
`x^2+8x-30-18=18-18`

⇒
`x^2+8x-48=0`

On applying factorization, we get

⇒
`x^2+12x-4x-48=0`

On taking common, we get

⇒
`x(x+12)-4(x+12)=0`

⇒
`(x-4)(x+12)=0`

⇒
`x-4=0`

`x=4`

or,

⇒
`x+12=0`

`x=-12`