Top answers

Solve 5x – 2 > 3x + 11

5x – 2 > 3x + 11 5x - 3x > 11 + 2 2x > 13 x > 13/2 x > 6.5
NA
Answered by Nagashriya A. • Maths tutor
4185 Views

expand (x + 5) (x + 3)

x^2 + 8x + 15
TW
Answered by Thomas W. • Maths tutor
3533 Views

How do you use the quadratic formula?

Every quadratic equation is in the form: ax 2 + bx + c The quadratic formula is as follows: [ -b ± sqrt(b 2 - 4ac) ] / 2a The quadratic formula finds you the roots of the quadratic equation.
TD
Answered by Tutor52832 D. • Maths tutor
3988 Views

Find the vertex coordinates of parabola y = 2x^2 - 4x + 1

In this exercise I have to find the coordinates of the vertex of the parabola. Given the general equation y= ax^2 + bx + c , the value of a is 2, the value of b is -4 and the value of c is 1. In order to com...
MB
Answered by Martina B. • Maths tutor
14025 Views

How do you complete the square to answer quadratic equations?

x 2 +6x-2 = 0 We use completing the square when the equation cannot be factorised. Begin by placing x 2 in the brackets and halving the number in front of the x (also known as the coefficient of x) to form (...
MM
Answered by Mikhailia M. • Maths tutor
4960 Views