Factor completely.343y3 – 729

Use factoring to solve the equation.2k2 = 24k – 64

Write the number in scientific notation.1,575,690

Factor by grouping.20×2 – 15xy + 8xy – 6y2

Shade the solution set in the xy-plane.x – y > -3

Factor completely.10×2 + 11x – 6

Perform the arithmetic.- ÷ –

Solve the equation.2×2 + 21 = x2 + 10x

Shade the solution set in the xy-plane.x + y ≤ 6

Solve the equation for y to obtain the slope-intercept form.3x – 10y = -6