1. Factor this quadratic function:2x2 + 12x +16

Step-by-step explanation:

We can start with the observation that every coefficent in the quadratic is a multiple of 2. Factoring out the 2, our expression becomes . Let's focus on the second term, . To factor this, we want to find two numbers that multiply to 8 and add to 6. 4 · 2 = 8 and 4 + 2 = 6, so we can use that fact to split the middle term and factor the quadratic completely:

Putting that back with the 2 we factored out earlier, our fully factored function is

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

step-by-step explanation:

the answer is 11.2 (i know i’m late)