Question

if 3x-4y=10 and xy= -1, find the value of 9x^2 + 16y^2

Answer 1

hey mate.___________

@@Here is UR ANswe€R..//////////////////////___

$3x - 4y = 10$
$and \: xy = - 1$
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(3x - 4y)^2 =(10)^2

it is in the form of __________(a-b)^2 = ( a^2 + b^2 -2ab)

Again"""#########

[ (3x)^2 +(4y)^2 -2×3x×4y ] =100

_(9x^2 +16y^2 -24xy) =100
◇◇: xy = - 1

So》》》》》》》》》》》》

9x^2 + 16y^2 -24 × -1 =100

9x^2 +16y^2 +24 =100

9x^2 +16y^2 =100-24

9x^2 +16y^2 =76......♡♡♡♡♡♡♡

Plz Mark as♧♧♧♧♧♧♧ brainliest