Practice with the Quadratic Formula

Complete these exercises and check your answers.

Exercises

Answers

99. m=-1, m=\frac{3}{4}

101. p=\frac{1}{2}, p=3

103. p=-4, p=-3

105. r=-3, r=11

107. u=\frac{-7 \pm \sqrt{73}}{6}

109. a=\frac{3 \pm \sqrt{3}}{2}

111. no real solution

113. v=\frac{-5 \pm \sqrt{65}}{2}

115. m=-1, m=\frac{3}{4}

117. c=-\frac{3}{4}

119. m=-\frac{7}{5}, m=1

121. p=-3, p=9

123. r=\frac{-3 \pm \sqrt{89}}{8}

125. a=\frac{-6 \pm \sqrt{26}}{2}

127. b=\frac{-2 \pm \sqrt{22}}{6}

129. x=\frac{-6 \pm \sqrt{42}}{4}