drewwilson07 drewwilson07
  • 04-04-2016
  • Mathematics
contestada

Factorise and Solve

Factorise and Solve class=

Respuesta :

Panoyin
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

Otras preguntas

change -23/20 into a deciamal
I will give 50 points answer all why the order of the proof is correct d,a,c,b Please explan dosnt have to be super detailed haha 9. Order the steps below to co
Which of the following functions is most likely to have the smallest value for yifx is large? (Assume & is positive) O a direct variation function with a sm
Location B is which place? Canaan Egypt Syrian Desert Mediterranean Sea
In this type of governance the power is in the hands of one person​
Convert the population of Texas to Scientific notation. There are 28,000,000 people living in Texas.
Water flows through a pipe at a rate of 7 liters every 9 days. Express this rate of flow in gallons per week. Round your answer to the nearest hundredth.
In 1860 the small towns became a city. true or false
change -23/20 into a deciamal
how much is 409,000x509,000