Answer:
1.(5)²-4(1)(4) = 9 real roots and perfect square
2.(1)²-4(2)(-21)= -167 no real roots( pag negative nl real roots agad yan)
3.(4)²-4(4)(1)= 0 not a perfect square and irrational
4.(-2)²-4(1)(-2)= 4 real roots and perfect square
5. (0)²-4(9)(16)= -576 no real roots
Step-by-step explanation:
Hope it helps!!
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Answers & Comments
Answer:
1.(5)²-4(1)(4) = 9 real roots and perfect square
2.(1)²-4(2)(-21)= -167 no real roots( pag negative nl real roots agad yan)
3.(4)²-4(4)(1)= 0 not a perfect square and irrational
4.(-2)²-4(1)(-2)= 4 real roots and perfect square
5. (0)²-4(9)(16)= -576 no real roots
Step-by-step explanation:
Hope it helps!!