Make x the subject of formula x²/a²+y²/b²=1

x = ±

Step-by-step explanation:

Given

+ = 1

Multiply through by a²b² to clear the fractions

b²x² + a²y² = a²b² ( subtract a²y² from both sides )

b²x² = a²b² - a²y² ( divide both sides by b² )

x² = ( take the square root of both sides )

x = ±

$8

step-by-step explanation:

it is pretty much backwards.

you take the 4x2 multiply that, and that is = $8

b

step-by-step explanation: