

EQUAÇÃO DO 2° GRAU
Presentation
•
Mathematics
•
KG
•
Medium
Cantinho 2
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1 Slide • 6 Questions
1
EQUAÇÃO DO 2° GRAU E ESTUDO DAS RAÍZES

2
Multiple Choice
A MAIOR RAIZ DA EQUAÇÃO – 2X² + 3X + 5 = 0 VALE:
1
2
-1
2,5
3
Multiple Choice
AS RAÍZES DA EQUAÇÃO 3X² + 8X + 5 = 0 SÃO:
REAIS E IGUAIS
AMBAS INTEIRAS
AMBOS POSITIVOS
AMBOS NEGATIVOS
4
Multiple Choice
QUANTAS RAÍZES REAIS TEM A EQUAÇÃO 2X² - 2X + 1 = 0?
0
1
2
3
5
Multiple Choice
2- PARA QUE A EQUAÇÃO 5x² - 6x + k = 0 TENHA O DISCRIMINANTE NULO, K DEVE SER IGUAL A:
0
5/9
-5/9
9/5
6
Multiple Choice
2- A SOMA E O PRODUTO DAS RAÍZES DA EQUAÇÃO x² + x – 1 = 0 SÃO RESPECTIVAMENTE:
-1 e 0
1 e -1
-1 e 1
-1 e -1
7
Multiple Choice
Qual deve ser o valor de m na equação 2x² - mx – 40 = 0 para que a soma de suas raízes seja igual a 8?
8
16
-8
-16
EQUAÇÃO DO 2° GRAU E ESTUDO DAS RAÍZES

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