We need two numbers that when multiplied will give you -40 and when added will give you -3: (x+5) (x-8) this is your answer. And you want to know the process Here it goes. And attached is a chart I made you so you can visually see what this process is telling you: 1) identify a,b, and c in the trinomial ax^2 + bx+c (in your case it's 1x^2-3x-40= x^2-3x-40) 2) write down all factor pairs of c (numbers that multiplied produce -40) 3) identify which factor pair from the previous step sums up to b 4) Substitute factor pairs into two binomials
<span>l ≤ 12 2l + 2w < 30 the second and fourth option are saying she can make the length longer than twelve and the third option forgets to double the length and width so it is accurate. The first option is the right answer.</span>
