Five times the sum of three times a number and 4 is -10, find the number.

The perimeter of an equilateral triangle is 4 cm more than the perimeter of a square and the length of a side of the triangle is 8 cm more than the length of a side of the aware. find the length of a side of the equilateral triangle

|p| > 3 {-3, 3} {p|-3 < p < 3} {p|p < -3 or p > 3}

How many and of which kind of roots does the equation f(x)=2x^4−9x^3+17x^2−16x+6 have?