Jika x=3 dan y=-2 tentukan nilai dari bentuk aljabar berikut
a. 3x²+2xy-4x-5y-3
b.3x²-2xy+4x-5y+3
a. 3x²+2xy-4x-5y-3
b.3x²-2xy+4x-5y+3
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Penjelasan dengan langkah-langkah:
a. 3x^2+2xy-4x-5y-3
= 3(3)^2+2(3)(-2)-4(3)-5(-2)-3
3(9)+(-12)-12+10-3
=27-12-12+10-3
=10
b.3x^2-2xy+4x-5y+3
=3(3)^2-2(3)(-2)+4(3)-5(-2)+3
=3(9)+12+12+10+3
27+12+12+10+3
=64