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Solve the following to find x. x^2 +3x -10 =0

This is an example of a quadratic equation. One way of solving it wwould be to use the quadratic formula. You can subsitute the values of a, b and c into the formula where a=1 b=3 and c=-10. This will give 2...
NC
Answered by Nathan C. • Maths tutor
12693 Views

X=4a+3b, If a is a two digit cube number and b is a two digit square number then what is the lowest possible value for X?

In order to find the lowest value for X we first need to find the lowest possible value for a and b. Let us start off with a: If a is the lowest possible cube number we can start by checking the first couple...
SI
Answered by Silje I. • Maths tutor
4873 Views

Simplify 3!/5!

We call 3! 'three factorial' and 5! 'five factorial'. 3!=3x2x1 5!=5x4x3x2x1 So our fraction becomes: (3x2x1) / (5x4x3x2x1) = 6/120 Then dividing the top and bottom by 6 we get: 1/20
ME
Answered by Max E. • Maths tutor
7053 Views

Solve the inequality 5x+3<3x-6

We need to solve this so we have a positive x term on one side. First we can subtract 3 from both sides of the inequality to get: 5x&lt;3x-9 Next we can subtract 3x from both sides to get: 2x&lt;-9 Finally w...
ME
Answered by Max E. • Maths tutor
7380 Views

Find the values of x when x^2-6=x

We need to factorise this equation to solve it. The first step for factorisation is to make the equation equal to zero. We can do this by subtracting x from both sides to get: x²-x-6=0 The coefficent in fron...
ME
Answered by Max E. • Maths tutor
8027 Views