The perimeter of a triangular playground is 270 feet. if the ratios of the measures of the sides of the triangle are 5: 6: 7, find the measure of the sides of the playground. 48 feet, 72 feet, 144 feet 60 feet, 80 feet, 100 feet 75 feet, 90 feet, 105 feet 50 feet, 60 feet, 70 feet

can you hlep me do homework?

step-by-step explanation:

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form