Seikoz5760 Seikoz5760
  • 08-01-2020
  • Mathematics
contestada

Solve the following equation.
x^2 + 6x − 40 = 0

Respuesta :

abidemiokin
abidemiokin abidemiokin
  • 10-01-2020

Answer:

x = 4 and -10

Step-by-step explanation:

Given the equation

x²+6x-40= 0

The common factors to use for the factorisation are +10 and -4

x²+(10x-4x)-40=0

(x²+10x)-(4x-40) = 0

x(x+10)-4(x+10) = 0

(x-4)(x+10) = 0

x-4 =0 and x+10 = 0

x = 4 and x = -10

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