exam Maths Puzzle Numerical Ability

Calculate

(6x10^5)^2

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exam Other Question

Solve the following quadratic equation.

x^2 = 7x Hi,
I need help with this problem: {{{3x^3-4x=1}}. I'm unsure how to factor it because of the cube. I moved the one to the other side and tried to factor it, but found i couldnt b