Use the following roots to write equations of the form Ax^2 + Bx + C = 0 ...

      

Use the following roots to write equations of the form Ax^2 + Bx + C = 0
a. (2,5) b. (3, -4) c. (-7 ,-1)

  

Answers


joseph
a. The value of x = 2 or x = 5 then the equation will be
(x-2)(x-5) =0
x (x-5) – 2(x – 5) = 0
x^2 -5x – 2x + 10 = 0
x^2 – 7x + 10 = 0
b. The value of x = 3 or x =-4 then the equation will be
(x -3) ( x +4) = 0
x (x + 4) – 3(x+4) = 0
x^2 +4x – 3x -12 = 0
x^2 + x -12 = 0
c. The value of x = -7 or x = -1 then the equation will be
(x + 7) (x + 1) = 0
x (x+ 1) +7(x+1) =0
x^2 + x + 7x + 7 = 0
x^2 + 8x + 7 = 0

joseph rimiru answered the question on September 23, 2017 at 02:50


Next: State three methods used by the British to establish colonial rule in Kenya.
Previous:  Solve the following linear equations; a. X + 5 = 0 b. 3X – 4 = 0 ...

View More Mathematics Questions and Answers | Return to Questions Index


Exams With Marking Schemes

Related Questions