Sagot :
8. Which of the following quadratic equations has real and equal roots?
A. x²—10x+25=0
B. t²—5t—9=0
C. 2s²—4s=–4
D. 4r²+2r—5=0
Step-by-step explanation:
[tex] {x}^{2} - 10x + 25 = (x - 5)(x - 5)[/tex]
8. Which of the following quadratic equations has real and equal roots?
B. t²—5t—9=0
C. 2s²—4s=–4
D. 4r²+2r—5=0
Step-by-step explanation:
[tex] {x}^{2} - 10x + 25 = (x - 5)(x - 5)[/tex]