Question

Factoring by grouping
2x^2+4x+4

Answer 1

What is 7.8 × 105 m/h in kilometers per day? can you please help

Answer 2

Hi there @shadow141697 . I don’t think your problem here can be solved. In order to solve by grouping, you first need to factor out the GCF (which is 2).

2x^2 + 4x + 4
2(x^2 + 2x + 2)

Now to group this trinomial, we have to find two numbers that multiply to 2 and add to 2. At first glance, you may think of the numbers 2 and 1. While they do multiply to 2, they add to 3.

I’ve tried several other number combinations, even with negative numbers and I cannot find two that will work to solve your problem. Sorry! :) Let me know if you still don’t understand.