Find the sum and product of the roots of the equation 2x^2+3x-5=0
We know that for equation ax^2+bx+c=0
a = 2,b = 3,c = -5
If the roots x1 and x2 are real numbers:
x1 + x2 = -b/a = -3/2
x1*x2 = c/a = -5/2
PG
Related Maths A Level answers
All answers ▸Find the stationary points of the equation. f(x)=3x^2+4x.
Question shown in the answer section as a hyperlinked link.
Find the equation of the tangent to the curve y = 3x^2(x+2)^6 at the point (-1,3), in the form y = mx+c
a) Express 4(cosec^2(2x)) - (cosec^2(x)) in terms of sin(x) and cos (x) and hence b) show that 4(cosec^2(2x)) - (cosec^2(x)) = sec^2(x)