book Maths Puzzle Numerical Ability

c(c-1)(c+13)=0 solve for variable


five times the square root of a number is 15. find the number

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book Other Question

Write the equation for the axis of symmetry of the graph of the equation y=5+16x-2x^2 (Hint: Rewrite the equation so that it fits the standard form of a quadratic function.) can you show me how to work the following problem:

3/2y - y = 4 + 1/2y