Kak tolong jawap mau dikumpulkan

Kak tolong jawap mau dikumpulkan

1. (5x²+3x)+(2x²-x) = 5x²+3x+2x²-x

= 5x²+2x²+3x-x

= 7x²+2x

2. 5x²y+2xy-(2x²y+5xy) = 5x²y+2xy-2x²y-5xy

= 5x²y-2x²y+2xy-5xy

= 3x²y – 3xy

3. 2a²+3ab – 5a²+10ab = 2a²-5a²+3ab+10ab

= -3a² + 13ab

6. x²+2x:x = x²+2×1

= x² + 2

$3 {x}^{2} + 2x - 1 div 3x - 1 = 3 {x}^{2} + 2x - frac{1}{3}x - 1 = 3 {x}^{2} + frac{5}{3}x - 1$

8. (2x²+1)(x+1) = 2x²×x+2x+x+1

= 2x³+2x²+x+1

9. 3x²(x+4) = 3x²× x + 3x × 4

= 3x³ + 12x²

10. (x+5)(x-5) = x² – 5²

= x² – 25

Semoga Membantu Ya