jasmine042452 jasmine042452

22-05-2020
Mathematics

contestada

Complete the equivalent equation for –7x – 60 = x2 + 10x.
*)(x + ) = 0
What are the solutions of -7x-60 = x2 + 10x?
(x +
XED

Respuesta :

starlipika starlipika

22-05-2020

Answer:

x = -5

x = -12

Step-by-step explanation:

- 7x - 60 = x^2 + 10x

add 7x to both sides

x^2 + 17x = -60

add 60 to both sides

x^2 + 17x + 60 = 0

factorise quadratic

(x + 12) (x + 5) = 0

x = -12

x = -12x = -5

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