Question

the question is in the screenshot
will give brain-thingy to the real answer

Answer 1

Answer : Try it yourself too.

For  $a^{2} - 9a + 14=0$ :

lets check it with the first Box [ -2 , 7 ], So we take -2 and 7 and replace them with 'a' one by one.

 $a^{2} - 9a + 14=0$

⇒ 4 - 18 + 14 = 4 - 4 = 0 [hence -2 is one solution for this equation]

check 7 :

⇒ 49 - 63 + 14 = -14 + 14 = 0 [hence 7 is also the solution for this equation]

So, the first equation goes in the box of 1st.

Now you have to check it yourself for the rest, it's probably your test or for your practice, please do it yourself, it's very easy, but it will take a long time to write it down on PC.

Hope it helps