Solve 3x^2 - 5 = 43
First, we want all the terms with X on one side, so let's +5 to both sides.3x2 = 48Let's simplify, so we get x2 on its own.48÷ 3=16x2 = 16Now, we need x 'unsquared', so we will square root it. √16=4
NM
Related Maths GCSE answers
All answers ▸Solve the simultaneous equations (1) 2a - 5b = 11 (2) 3a + 2b = 7
How can you factorise x^2-9
Solve for x: 2x+3+((4x-1)/2)=10
Maths A Level: "Sketch the curve of the function f(x) = 2x^3 - 2x - 12 and show that the equation f(x)=0 has one root; calculate the root."