Matematika Sekolah Dasar x² = 25
x = ?
- - - -
Setelah itu tentukan:
→ ( x + 3 )²
→ x² + x²
→ 3x​

x² = 25
x = ?
- - - -
Setelah itu tentukan:
→ ( x + 3 )²
→ x² + x²
→ 3x​

Penyelesaian soal :

  • Menentukan Nilai x

[tex] \sf {x}^{2} = 25[/tex]

[tex] \sf = \sqrt{5}{}^{2} [/tex]

[tex] \sf x = 5[/tex]

[tex] \\ [/tex]

  • (x + 3)²

[tex] \sf (x + 3) {}^{2} [/tex]

[tex] \sf = (5 + 3) {}^{2} [/tex]

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

[tex] \sf =8 \times 8[/tex]

[tex] \sf =64[/tex]

[tex] \\ [/tex]

  • x² + x²

[tex] \\ [/tex]

[tex] \sf x {}^{2} + x {}^{2} [/tex]

[tex] \sf = 5 {}^{2} + 5 {}^{2} [/tex]

[tex] \sf =(5 \times 5) + (5 \times 5)[/tex]

[tex] \sf =25 + 25[/tex]

[tex] \sf =50[/tex]

[tex] \\ [/tex]

  • 3x

[tex] \sf 3x[/tex]

[tex] \sf = 3(5)[/tex]

[tex] \sf = 3 \times 5[/tex]

[tex] \sf = 15[/tex]

[tex] \\ [/tex]

Tysm!

Penyelesaian :

  • Cari Nilainya

x² = 25

x = ²√25

x = 5

  • Sekarang tentukan

NO 1

= (x + 3)²

= (5 + 3)²

= (8)²

= 64

_____________________

NO 2

= x² + x²

= 5² + 5²

= (5 x 5) + (5 x 5)

= 25 + 25

= 50

_____________________

NO 3

= 3x

= 3(5)

= 15

- Koreksi!

[tex]\blue{\small{\boxed{\sf{Semangat \: belajarnya!}}}}[/tex]

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