Factoring quadratic equations
4x³ + 43x² + 30x

4x³ + 43x² + 30x
x(4x²) + x(43x) + x(30)
x(4x² + 43x + 30)
x(4x² + 3x + 40x + 30)
x(x(4x) + x(3) + 10(4x) + 10(3))
x(x(4x + 3) + 10(4x + 3))
x(x + 10)(4x + 3)

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post