Characterize the roots of the following quadratic equations using the discriminant.
[tex] {x}^{2} + 7 = 0[/tex]
[tex] {x}^{2} - 25 = 0[/tex]
[tex] {x}^{2} - 49 = 0[/tex]
[tex]4 {x}^{2} - 25 = 0[/tex]
[tex] {x}^{2} + 7 = 0[/tex]
[tex] {x}^{2} - 25 = 0[/tex]
[tex] {x}^{2} - 49 = 0[/tex]
[tex]4 {x}^{2} - 25 = 0[/tex]
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Answer 5
Step-by-step explanation:
5
Step-by-step explanation:
x²+7=0 x²-25=0 x²-49=0 4x²-25=0
x²=-7 x²=25 x²=49 4x²=25
x=√-7 x=5 x=7 x²=.16
x=.4
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