Rithvik's Blog GCSE

The function f(x) is defined as f(x) = 3x^2 - 2x + 5. Find the value of x when f(x) = 0.

The circle has equation x^2 + y^2 + 6x - 4y - 12 = 0 Find the centre and radius of the circle

A function f(x) is defined as f(x) = 2^x + k, where k is a constant. The function passes through the point (4, 40). Find the value of k. For this value of k, solve the equation f(x) = 3^x.

Given the function f(x) = 2x²-5x+3, for what values of x does f(x) equal zero.