y=x^2+5x+6 solve for x

to solve a quadratic we can use the quadratic formula: (-b+_sqr(b2-4ac))/2a
y=x2+5x+6
a=1b=5c=6
to get x=3 or x=2

TS

Related Maths GCSE answers

All answers ▸

The perimeter of a right-angled triangle is 72 cm. The lengths of its sides are in the ratio 3 : 4 : 5 Work out the area of the triangle.


Solve the following equation : x^2 + 2x +1 = 0


Expand and simplify (3x + 2)(4x - 3).


Solve the simultaneous equations 2x+3y=17 and 10x-y=5.