The equations will be re-written such that the expression on one side can be graphed and the x-intercepts of the graph would indicate the solution.
A) 3X² = 81
Rewritten, we have  3X² - 81 = 0
This is also = 3(X² - 27) = 0
B) (X - 1)(X + 1) - 9 = 5X
Open the brackets and we have X² - 1 - 9 - 5x = 0
Simplified, we have X² - 5X - 10 = 0
C) X² - 9x + 10 = 32
Collect like terms and we have:
X² - 9X - 22 = 0
D) 6x(x - 8) = 29
Expand the bracket and collect like terms such that the equation is equal to zero and we have
6X² - 48x - 29 = 0
Using Desmos Graphing, the following results can be obtained showing that x intercepts at:
(a) (-5.196, 0) & (5.196, 0)
(b) (-1.531, 0) & (6.531, 0)
(c) (-2, 0) & (11, 0)
(d) (-0.564, 0) & (8.564, 0)
Learn more about graphed equations at:
https://brainly.com/question/14323743