You are finding the square root of 121
*the answer is 11*
because if you times 11 by its self you get 121
no because mathematically 30X10=300 not 900 its would have to be 30X30 to get the product of 900 so therefore no your statement is incorrect
heres a video link
https://virtualnerd.com/algebra-1/linear-equation-analysis/slope-rate-of-change/understanding-slope/rate-of-change-two-points-table
Here a=1, b= -5 and c= -3
so the discrim. is b^2 - 4(a)(c), or (-5)^2 - 4(1)(-3) = 25 + 12 = 37.
Because the discrim. is +, you'll have 2 real, unequal roots.