1.10×(2y-10)=
2.(×+5)x(5x-1)=
3.(7-2×)×(2x-7)=
Jawaban Terkonfirmasi
1. 10 × (2y – 10)
20y – 100
2. (x + 5) × (5x – 1)
= 5x² – x + 25x – 5
= 5x² + 24x – t
3. (7 – 2x) × (2x – 7)
= 14x – 49 – 4x² – 14x
= -4x – 49
1.10×(2y-10)=
2.(×+5)x(5x-1)=
3.(7-2×)×(2x-7)=
1. 10 × (2y – 10)
20y – 100
2. (x + 5) × (5x – 1)
= 5x² – x + 25x – 5
= 5x² + 24x – t
3. (7 – 2x) × (2x – 7)
= 14x – 49 – 4x² – 14x
= -4x – 49