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

Name two roles did Adam Smith believe the government should fulfill in society?
The country located at number _____ on the map above has a military junta in charge of its government. A. 1 B. 2 C. 3
Which of the following represents this function written in slope intercept form?
where were psalms sung in ancient egypt and israel?​
How many grams of Fe are produced from 65.9 g of FeO given the following reaction: 3FeO + 2Al -> 3Fe +Al2O3 Please guys
What is the area of the triangle?
Which of the following numbers is greater than 8.9?Please answer 4&6 for me
Making a down payment will _____. Select the best answer from the choices provided. A. decrease the interest rate on a loan B. increase the total cost of a
What is a term for a hired musician that records in the studio and sometimes performs in a jazz combo
What are the three important features to capitalism