drewwilson07
drewwilson07
04-04-2016
Mathematics
contestada
Factorise and Solve
Respuesta :
Panoyin
Panoyin
04-04-2016
x² + 8x - 20 = 0
x² + 10x - 2x - 20 = 0
x(x) + x(10) - 2(x) - 2(10) = 0
x(x + 10) - 2(x + 10) = 0
(x - 2)(x + 10) = 0
x - 2 = 0 or x + 10 = 0
+ 2 + 2 - 10 - 10
x = 2 or x = -10
The answer is B.
Answer Link
VER TODAS LAS RESPUESTAS ( 96+ )
Otras preguntas
Explain why contact trace evidence is so important in solving crimes.
Which causes athlete’s foot?
What is the value of (-4.5) (-8.25) ? Please!
How to simplify square root of 210?
A procedure designed to test a hypothesis
use elimination to solve: NN+ND=50 5NN+10ND=450
On a map, 1 inch represents 1,000 miles. If the area of a country is actually 16 million square miles, what is the area of the country’s representation on the
If five notebooks cost $5.25, how much will three notebooks cost?
The first light bulb had a filament made of _____.
What is 16/8 as a mixed number