Solve the equation 2x^2 + 3x = 9
2x2 + 3x = 92x2 + 3x - 9 = 0(2x - 3)(x+3)2x-3 = 02x = 3x = 3/2x+3=0x=-3x = 3/2 or -3
SN
Related Maths GCSE answers
All answers ▸How do you know when to add probabilities together and when to multiply them together
There are 10 boys and 20 girls in a class. The mean mark in a test for all the class is 60. The mean mark for the girls is 54. Work out the mean mark for the boys.
Solve the equation: x^2+x-12=0
Expand and simplify (x+6)(x-6)