Question

.
Diketahui:
f(x) = 4x² + 2x + 6
g(x) = 4x + 3

Tentukan:
1. f(x) + g(x) = ...?
2. 3 . f(x) + 2 . g(x) = ....?

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Answer 1

Verified answer

Jawaban:

1. 4x² + 6x + 9

2. 12x² + 14x + 24

Penjelasan dengan langkah-langkah:

f(x) = 4x² + 2x + 6

g(x) = 4x + 3

1. f(x) + g(x) = (f + g)(x)

= (4x² + 2x + 6) + (4x + 3)

= 4x² + 6x + 9

2. 3(f(x)) + 2(g(x)) = 3(4x² + 2x + 6) + 2(4x + 3)

= 12x² + 6x + 18 + 8x + 6

= 12x² + 14x + 24