1. which quadratic equation does not have any real solutions? a. x2 - 4x + 3 = 0 b. x2 - 4x + 4 = 0 c. x2 - 4x + 5 = 0 d. x2 - 5x + 6 = 0

What is the next step in the given proof? choose the most logical approach. a. statement: m 1 + m 2 + 2(m 3) = 180° reason: angle addition b. statement: m 1 + m 3 = m 2 + m 3 reason: transitive property of equality c. statement: m 1 = m 2 reason: subtraction property of equality d. statement: m 1 + m 2 = m 2 + m 3 reason: substitution property of equality e. statement: 2(m 1) = m 2 + m 3 reason: substitution property of equality