Question

f(x) = 6x² + 100 - 6² + √x
g(x) = 2x² + 56² - √x


f(25) + g(4) = ....

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Answer 1

Diketahui :

f(x) = 6x² + 100 - 6² + √x

g(x) = 2x² + 56² - √x

Ditanya :

f(25) + g(4)

Jawab :

f(25) = 6(25)² + 100 - 6² + √25

f(25) = 6(25 × 25) + 100 - 6² + √25

f(25) = 6(625) + 100 - 6² + √25

f(25) = (6 × 625) + 100 - 6² + √25

f(25) = 3.750 + 100 - 6² + √25

f(25) = 3.750 + 100 - (6 × 6) + √25

f(25) = 3.750 + 100 - 36 + √25

f(25) = 3.750 + 100 - 36 + ✓5²

f(25) = (3.750 + 100) - 36 + 5

f(25) = (3.850 - 36) + 5

f(25) = 3.814 + 5

f(25) = 3.819

g(4) = 2(4)² + 56² - √4

g(4) = 2(4 × 4) + 56² - √4

g(4) = 2(16) + 56² - √4

g(4) = (2 × 16) + 56² - √4

g(4) = 32 + 56² - √4

g(4) = 32 + (56 × 56) - √4

g(4) = 32 + 3.136 - √4

g(4) = 32 + 3.136 - √2²

g(4) = (32 + 3.136) - 2

g(4) = 3.168 - 2

g(4) = 3.166

f(25) + g(4)

= 3.819 + 3.166

= 6.985

Kesimpulan hasil dari f(25) + g(4) adalah : 6.985

Answer 2

Jawaban:

Penyelesaian :

=> f(25) = 3.819

• f(x) = 6x² + 100 - 6² + √x

• f(25) = 6(25)² + 100 - 6² + √25

• f(25) = 6( 25 × 25 ) + 100 - ( 6 × 6 ) + √25

• f(25) = 6(625) + 100 - 36 + √5²

• f(25) = ( 6 × 625 ) + 100 - 36 + 5

• f(25) = 3.750 + 100 - 36 + 5

• f(25) = ( 3.750 + 100 ) - 36 + 5

• f(25) = 3.850 - 36 + 5

• f(25) = ( 3.850 - 36 ) + 5

• f(25) = 3.814 + 5

• f(25) = 3.819

=> g(4) = 3.165

• g(x) = 2x² + 56² - √x

• g(4) = 2(4)² + 56² - √4

• g(4) = 2(4²) + ( 56 × 56 ) - √2²

• g(4) = 2( 4 × 4 ) + 3.136 - 2

• g(4) = 2(16) + 3.136 - 2

• g(4) = ( 2 × 16 ) + 3.135 - 2

• g(4) = 32 + 3.136 - 2

• g(4) = ( 32 + 3.136 ) - 2

• g(4) = 3.168 - 2

• g(4) = 3.166

=> f(25) + g(4)

• = 3.819 + 3.166

• = 6.985