Explanations 
Textbooks 
Flashcards 
91影视 AI 
Notes 
Study Plans 
Study Sets 
Find a degree 
Magazine Problem 96
Evaluate \(\sqrt{b^{2}-4 a c}\) for each set of values. See Section 10.3 $$ a=3, b=-1, c=-2 $$
Problem 96
Use the quadratic formula to solve each quadratic equation. $$ 7 x^{2}+\sqrt{7} x-2=0 $$
Problem 97
Evaluate \(\sqrt{b^{2}-4 a c}\) for each set of values. See Section 10.3 $$ a=1, b=-3, c=-1 $$
Problem 98
Without solving, determine whether the solutions of each equation are real numbers or complex, but not real numbers. See the Concept Check in this section. $$ (x+1)^{2}=-1 $$
Problem 99
Recall that the discriminant also tells us the number of \(x\) -interceptsof the related function. Check the results of Exercise 49 by graphing \(y=9 x-2 x^{2}+5\)
Problem 99
Without solving, determine whether the solutions of each equation are real numbers or complex, but not real numbers. See the Concept Check in this section. $$ (y-5)^{2}=-9 $$
Problem 100
Without solving, determine whether the solutions of each equation are real numbers or complex, but not real numbers. See the Concept Check in this section. $$ 3 z^{2}=10 $$
Problem 101
Without solving, determine whether the solutions of each equation are real numbers or complex, but not real numbers. See the Concept Check in this section. $$ 4 x^{2}=17 $$
Problem 102
Without solving, determine whether the solutions of each equation are real numbers or complex, but not real numbers. See the Concept Check in this section. $$ (2 y-5)^{2}+7=3 $$
Problem 103
Without solving, determine whether the solutions of each equation are real numbers or complex, but not real numbers. See the Concept Check in this section. $$ (3 m+2)^{2}+4=1 $$
