1. √2.500 + √100 – √49
2. f(x) = 10x + x × 4x
f(3) =
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Jawaban:
1. 53
2. 66
Penjelasan dengan langkah-langkah:
nomor 1
= √2.500 + √100 – √49
nomor 2
f(x) = 10x + x × 4x
f(3) = 10(3) + 3 × 4(3)
f(3) = ( 10 × 3 ) + 3 × 4(3)
f(3) = ( 10 + 10 + 10 ) + 3 × 4(3)
f(3) = ( 20 + 10 ) + 3 × 4(3)
f(3) = 30 + 3 × 4(3)
f(3) = 30 + 3 × ( 4 + 4 + 4 )
f(3) = 30 + 3 × ( 8 + 4 )
f(3) = 30 + 3 × 12
f(3) = 30 + 36
f(3) = 66
Jawaban:
1. 53
2. 45
Penjelasan dengan langkah-langkah:
1.√2.500 = 50
√100 = 10
√49 = 7
jadi, 50 + 10 – 7 = 53
2. f(x) = 10x + x + 4x
f(3) = 10(3) + 3 + 4(3)
= 30 + 3 + 12
= 45