2. (Y pangkat 2 + 1/2) pangkt 2 =
3. ( 3a pangkat 2 + 1/3) pangkat2=
4. 3( -6p – 7q)pangkat 2=
5. (x + 5) pangkat 2 + (x – 3) pangkat2=
.
.
.
pliss bantu!
1. (10m – 3n)pangkat2=
1. (10m – 3n)²
= (10m – 3n)(10m – 3n)
= 100m² – 30mn – 30mn + 9n²
= 100 m² – 60mn + 9n²
2. (y² + 1/2)²
= (y² + 1/2)(y² + 1/2)
= y^4 + 1/2y² + 1/2y² + 1/4
= y^4 + y² + 1/4
3. 3( -6p – 7q)²
= 3 (-6p – 7q)(-6p – 7q)
= 3 (36p² + 42pq + 42pq + 49q²)
= 3 (36p² + 84pq + 49q²)
= 108p² + 252pq + 147q²
4. (x + 5)² + (x – 3)²
= [(x + 5)(x + 5)] + [(x – 3)(x -3)]
= [x² + 5x + 5x + 25] + [(x² – 3x – 3x+9)]
= x² + 10x + 25 + x² – 6x + 9
= 2x² + 4x + 34