Question

Qz.
f(x) = x × x - 10 × x
f(3)=?
f(4)=?​

Answer 1

Penjelasan dengan langkah-langkah:

• ╰► Nilai f(3)

f(x) = x × x - 10 × x

f(3) = 3 × 3 - 10 × 3

f(3) = 9 - ( 10 × 3 )

f(3) = 9 - 30

f(3) = -21 ✔️

• ╰► Nilai f(4)

f(x) = x × x - 10 × x

f(4) = 4 × 4 - 10 × 4

f(4) = ( 4 × 4 ) - ( 10 × 4 )

f(4) = 16 - 40

f(4) = -24 ✔️

• — 黄仁俊 <3

Answer 2

f(x) = x × x - 10 × x

____________

f(3) = 3 × 3 - 10 × 3

f(3) = (3 × 3) - (10 × 3)

f(3) = 9 - 30

f(3) = -21

____________

f(4) = 4 × 4 - 10 × 4

f(4) = (4 × 4) - (10 × 4)

f(4) = 16 - 40

f(4) = -24

____________

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