7.) + = 12 x2 x (std. form): a = b = _____ c = _____ b2 4ac = _______ – 8.) 5x2 8x = -3 – (std. form): a = _____ b = _____ c = _____ b2 4ac = _______ – 9.) -x2 + = -1 10.) 3x2 = 7 2x x – 11.) -x2 + 4x = 5 12.) Solve using the SQUARE ROOT PRINCIPAL. Use the square root principal. Simplify. for by subtracting 3. x Examples 13. 14. 15.
7.) x2 + x = 12 (std. form): a = b = _____ c = _____ b2 – 4ac = _______ 8.) 5x2 – 8x = -3 (std. form): a = _____ b = _____ c = _____ b2 – 4ac = _______ 9.) -x2 + x = -1 10.) 3x2 = 7 – 2x 11.) -x2 + 4x = 5 12.) Solve using the SQUARE ROOT PRINCIPAL. Use the square root principal. Simplify. for x by subtracting 3. Examples 13. 14. 15.