Answers
>
Maths
>
GCSE
>
Article
x^2-9x+20=0
x
2
-9x+20=0x
2
-5x-4x+20=0x(x-5)-4(x-5)=0(x-4)(x-5)=0x-4=0x=4x-5=0x=5
GL
Answered by
Georgia L.
•
Maths tutor
3770 Views
See similar Maths GCSE tutors
Related Maths GCSE answers
All answers ▸
Solve the simultaneous equations: 3x+5y=3 and 6x+6y=10
How do you factorise a quadratic?
Calculate the angle x in the following diagram. The area of the square is 16cm squared and the total area is 36.6cm squared.
Solve the simultaneous equation: 2x + y = 5, 3x + 4y = 10