exam Maths Puzzle Numerical Ability

Solve the following equations:

a: x^3-4x=0
b: 2x^2+7x-15=0

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exam Other Question

For the quadratic equations, find the vertex, rewrite in general form , standard form and transformational form.

a) 1/2(y-3)=(x+2)^2
b) y=3(x-2)^2+1 how to solve this equation x+y<5 x-y>1 by using the graphs of linear inequalities