Question

Find the value of 36x2 + 49y2 - 84xy if x = 2, y = -2.
pls answer this equation ​

Answer 1

Answer:

If x = 2, y = -2, then  $36x^2 + 49y^2 - 84xy = 676$

Step-by-step explanation:

If x = 2 and y = -2

Find the value of

$36x^2 + 49y^2 - 84xy\\= 36(2)^2 + 49(-2)^2 - 84 (2)(-2)\\= 36 (4) + 49 (4) - 84 (-4)\\= 144+ 196 + 336\\= 676$