Explicação passo-a-passo:
4-1/2=8-1/2=7/2
MMC 2
1+4-1/5=5-1/5=25-1/5=24/5
MMC 5
2.1/100+5.1/2=2÷2/100÷2+5/2=1/50+5/2=1/50+125/50=126÷2/50÷2= 63/25
MMC 25
[tex] \frac{6 {}^{2} - ( - 7) {}^{2} }{3 {}^{ - 2} + 3 {}^{ - 1} } \\ \\ \frac{36 - 49}{ \frac{1}{9} + \frac{1}{3} } \\ \\ \frac{ - 13}{ \frac{1 + 3}{9} } \\ \\ \frac{ - 13}{ \frac{4}{9} } \\ \\ - 13 \times \frac{9}{4} \\ \\ - \frac{117}{4} [/tex]
A) (-2)² - 2 -¹
4-1/2
7/2
B) 4⁰ + 4¹ - 5 -¹
1+4-1/5
5-1/5
24/5
C)2 • 10 -² + 5 • 2 -¹
2.1/10²+5.1/2
2.1/100+5/2
1/50+5/2 mmc = 50
1/50+125/50
126/50 simplificando ×2 = 63/25
D) 6² - (-7)²/3 -² + 3 -¹
36-49
1/9+1/3
-13/4/9
-13×9/4
-117/4
17/04/22
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Explicação passo-a-passo:
4-1/2=8-1/2=7/2
MMC 2
1+4-1/5=5-1/5=25-1/5=24/5
MMC 5
2.1/100+5.1/2=2÷2/100÷2+5/2=1/50+5/2=1/50+125/50=126÷2/50÷2= 63/25
MMC 25
[tex] \frac{6 {}^{2} - ( - 7) {}^{2} }{3 {}^{ - 2} + 3 {}^{ - 1} } \\ \\ \frac{36 - 49}{ \frac{1}{9} + \frac{1}{3} } \\ \\ \frac{ - 13}{ \frac{1 + 3}{9} } \\ \\ \frac{ - 13}{ \frac{4}{9} } \\ \\ - 13 \times \frac{9}{4} \\ \\ - \frac{117}{4} [/tex]
A) (-2)² - 2 -¹
4-1/2
7/2
B) 4⁰ + 4¹ - 5 -¹
1+4-1/5
5-1/5
24/5
C)2 • 10 -² + 5 • 2 -¹
2.1/10²+5.1/2
2.1/100+5/2
1/50+5/2 mmc = 50
1/50+125/50
126/50 simplificando ×2 = 63/25
D) 6² - (-7)²/3 -² + 3 -¹
36-49
1/9+1/3
-13/4/9
-13×9/4
-117/4
❤️ Fico feliz em ajudar ❤️
17/04/22