Jika a×b =a+a×b maka nilai dari -3×(-4)

- Operasi -

axb = a+axb
-3x-4 = -3-3x-4
-3x-4 = -3+12
-3x-4 = 9

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-vin

a = -3
b = -4

⇔a×b = a + a × b
⇔-3 × -4 = -3 + (-3) × -4
⇔-3 × -4 = -3 + 12
⇔-3 × -4 = 9