Q.(20/8)
f(x) = 5x + 3 - 2x
f(1xy + 2xy - 1) = ..
[tex] \\[/tex]
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f(x) = 5x + 3 - 2x
f(1xy + 2xy - 1) = ..
[tex] \\[/tex]
Penjelasan dengan langkah-langkah:
f(x) = 5x + 3 - 2x
f(1xy + 2xy - 1) = 5(1xy + 2xy – 1) + 3 – 2(1xy + 2xy –1)
= 5xy + 10xy – 5 + 3 – 2xy – 4xy + 2
= (5 + 10 – 2 – 4)xy – 5 + 3 + 2
= (15 – 6)xy – 5 + 5
= 9xy + 0
