Question

me ajudem nisso (5a^2-1)^2=

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Answer 1

(5a² - 1)² =

(5a²)² - 2.(5a²).(1) + (1)² =

25a⁴ - 10a² + 1

Answer 2

${(5 {a}^{2} - 1)}^{2} = {(5 {a}^{2} )}^{2} - 2.5 {a}^{2} .1 + {1}^{2} \\ = 25 {a}^{4} - 10 {a}^{2} + 1$