Question

If (3x-2y) =5 and xy=6, find the value of 9x² + 4y²
a) 79
b) 97
c) 37

Answer 1

Answer:

a is the answer

Step-by-step explanation:

(3x-2y$)^{2}$=9$x^{2}$+4$y^{2}$-2*3x*2y

(5$)^{2}$=9$x^{2}$+4$y^{2}$-12*(6)

25+72=9$x^{2}$+4$y^{2}$

9$x^{2}$+4$y^{2}$ = 97