Question

5(x²-1)=4(x²+1)
Me ajudemmmmm

Answer 1

5 * ( x² - 1) = 4 * (x² + 1)

distributiva :.

5x² - 5 = 4x² + 4


5x² - 4x² = 5 + 4

x² = 9

x = ±√ 9

x = ( ± 3) ✓

boa noite!! :)