1. Equations & Inequalities

Solve each equation using the square root property. x² = -400

For each equation, (b) solve for y in terms of x. See Example 8.

$4x^2-2xy+3y^2=2$

Solve each equation using completing the square. -3x² + 6x + 5 = 0

Solve each equation using the zero-factor property. 2x² - x = 15