exam Maths Puzzle Numerical Ability

The question says: solve each equation by completing the square.
m to the second power +14m-58=-7.

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exam Other Question

Problem#18
Write each fraction in simplest form
(-15x^3y^3)/(-20xy^4)

Problem#24
Write each expression in simplest form
(4x-28)/(5x-35)

Problem#36
Write each expression
The Keiko Construction Company is building a house. They need to dig a rectangular basement. It will have a length of 32 feet, a width of 24 feet, and a depth of 8 feet. How much dirt must be removed?