suleymagalicia123 suleymagalicia123

18-04-2019
Mathematics

contestada

What is the solution set of the equation x^2-3x-4=6

Respuesta :

cblue8282 cblue8282

18-04-2019

Answer:

x = 5, x = -2

Step-by-step explanation:

x² - 3x - 4 = 6

Subtract: x² - 3x - 10 = 0

Find two numbers to factor: adds up to -3x, product is -10x²: -5x and 2x

Substitute: x² - 5x + 2x - 10 = 0

Factor: (x - 5)(x + 2) = 0

Solutions: x = 5, x = -2

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