Factor. x2+5x−14 polynomials and binomials

These are a lot easier when they r like this...no coefficient in front of ur x^2.

x^2 + 5x - 14u see ur last sign, the -this tells me that in ur 2 factors, both signs will be differentone is positive and one is negative. U see ur first sign, the +, this tells me that ur bigger number will be positive.
Now we just have to find 2 numbers, that when added = 5 and when multiplied = 14, So ur 2 numbers are 7 and 2.

(x^2 + 5x - 14) = 
(x + 7)(x - 2) <===

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