exam
Maths Puzzle
Numerical Ability
A rectangle swimming pool is 15 meters long and 8 meters wide. A fence is built around the pool. It is 4 meters from each side of the pool. How long is the entire fence?
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exam Other Question
The hypotenuse of a right triangle is 6 inches longer than the shortest side and 3 inches longer than the remaining side. Find the dimensions of the triangle.
Solve the equation by finding all real roots.
x^3-7x+15x-9=0
i have this
1 -7 15 -9 /(divided by) 1.
x^2-6x+9
(x+1) (x^2-6x+9)
it says factor again and where is the soultion