2x + 4x - x² = ...
x → 4![]()
x → 4
2x + 4x - x² = ...
x → 4
= 2(4) + 4(4) - 4²
= (2 × 4) + (4 × 4) - (4 × 4)
= 8 + 16 - 16
= 24 - 16
= 8
#koreksi
Penyelesaian soal :
Jika :
- x = 4
Maka :
- 2x + 4x - x²
[tex] \sf 2x + 4x - {x}^{2} [/tex]
[tex] \sf = 2(4) + 4(4) - {4}^{2} [/tex]
[tex] \sf = (2 \times 4) + 4(4) - {4}^{2} [/tex]
[tex] \sf =8 + 4(4) - {4}^{2} [/tex]
[tex] \sf =8 +( 4 \times 4) - (4 \times 4)[/tex]
[tex] \sf =8 +16 - (4 \times 4)[/tex]
[tex] \sf =8 +16 - 16[/tex]
[tex] \sf =24 - 16[/tex]
[tex] \sf = \red8[/tex]
[tex] \\ [/tex]
Tysm!
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