Matematika Sekolah Menengah Pertama Q :80² + 90² = ...2¹ × 2² = ...​2! = ..

myrtiethielulv – March 08, 2023

Q :

80² + 90² = ...
2¹ × 2² = ...​
2! = ..

[tex]\tt 1. ) \: \: \: 80 {}^{2} \: + \: 90 {}^{2} \\ = \tt \: 6.400 \: + \: 8.100 \\ = \tt \: 14.500 \\ \\ \tt \: 2.) \: \: \: 2 {}^{1} \: \times \: 2 {}^{2} \\ = \tt \: 2 {}^{1 \: + \: 2} \\ = \tt \: 2 {}^{3} \: \: ( \: 2 \: \times \: 2 \: \times \: 2 \: ) \\ = \tt \: 8[/tex]

[tex]\tt 3.) \: \: \: 2! [/tex]

[tex]\tt \: \: = 2 \times 1 [/tex]

[tex]\tt \: \: = 2 [/tex]

Penjelasan dengan langkah-langkah:

80² + 90² = (80 + 90)² – 2(80)(90)

= 170² – 2(7.200)

= 170² – 120²

= (170 – 120)(170 + 120)

= 50×290

= 14.500

2¹ × 2² = 2¹+²

= 2³

= 8

2! = 2×1

= 2

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