Factorise the following quadratic x^2 - 8 + 16
Find two numbers that multiply together to equal the 3rd term and the product of the same two numbers also needs to equal the 2nd term. This is trial and error but in this case it will be, (x - 4) (x - 4)
AJ
Answered by ANTHONY J. • Further Mathematics tutor
3037 Views
See similar Further Mathematics GCSE tutorsRelated Further Mathematics GCSE answers
All answers ▸Find any stationary points in the function f(x) = 3x^2 + 2x
Why does the discriminant b^2-4ac determine the number of roots of the quadratic equation ax^2+bx+c=0?
(x+4)((x^2) - kx - 5) is expanded and simplified. The coefficient of the x^2 term twice the coefficient of the x term. Work out the value of k.
How would I solve the following equation d^2x/dt^2 + 5dx/dt + 6x = 0