Matematika Sekolah Dasar Q. 45² - 8² = 20 ³ + 7² = NOTE : besok ujian US.........dan saya stresss tpi gpp lah yakan bonusnya liatin kmuuu <3 <3

lulujonesulv – April 10, 2023

Q.

45² - 8² =
20 ³ + 7² =




NOTE : besok ujian US.........dan saya stresss tpi gpp lah yakan bonusnya liatin kmuuu <3 <3

Penyelesaian :

• Nomor 1

[tex] \sf \: = {45}^{2} - {8}^{2} [/tex]

[tex] \sf \: = (45 \times 45) - {8}^{2} [/tex]

[tex] \sf \: = 2.025 - {8}^{2} [/tex]

[tex] \sf \: = 2.025 - 64[/tex]

[tex] \sf \: = 1.961[/tex]

• Nomor 2

[tex] \sf \: = {20}^{3} + {7}^{2} [/tex]

[tex] \sf \: = (20 \times 20 \times 20) + {7}^{2} [/tex]

[tex] \sf \: = (400 \times 20) + {7}^{2} [/tex]

[tex] \sf \: = 8.000 + {7}^{2} [/tex]

[tex] \sf \: = 8.000 + (7 \times 7)[/tex]

[tex] \sf \: = 8.000 + 49[/tex]

[tex] \sf \: = 8.049[/tex]

[tex]{\boxed{\boxed{\bold{\blue{Rival \: X \: Rara}}}}}[/tex]

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