3x^2 + 7x - 13 = 0. What is x?
By using the quadratic quation, it can be deduced that x = 1.22 or x = -3.55
MS
Related Maths GCSE answers
All answers ▸x^2 - x - 90 = 0. Solve to find x.
Solve 5x + 10 = 2x(5x + 10)
An ice cream cone with a base 4.5 cm in diameter and whose height is 10 cm is filled with ice cream. What is the volume of ice cream to 3 d.p.? If the density of ice cream is 1095 kg/m^3, what is the mass of ice cream in 5 cones to 3 s.f.?
A ladder of length 6.5m is leaning against a vertical wall. The foot of the ladder is 1.5m from the wall. Calculate the distance the ladder reaches up the wall to 3 significant figures.