Question

A = x² - 2ax +a²
B = 5x² + 3ax - 4a²

Determine A - B

Answer 1

-4x²-5ax+5a²

A = x² - 2ax +a²

B = 5x² + 3ax - 4a²

Determine A - B

(x² - 2ax +a² )-(5x² + 3ax - 4a²)

x²-2ax+a²-5x²-3ax+4a²

x²-5x²-2ax-3ax+a²+4a²

-4x²-5ax+5a²

Boa noite ❤️❤️

08/09

Answer 2

$= A - B$

$\boxed{A= x {}^{2} - 2ax + a {}^{2} \: \: e \: \: B= 5x {}^{2} + 3ax - 4a {}^{2} }$

$= (x {}^{2} - 2ax + a {}^{2} ) - (5x {}^{2} + 3ax - 4a {}^{2} )$

$= x {}^{2} - 2ax + a {}^{2} - 5x {}^{2} - 3ax + 4a {}^{2}$

$= - 4x {}^{2} - 2ax + a {}^{2} - 3ax + 4a {}^{2}$

$= - 4x {}^{2} - 5ax + a {}^{2} + 4a {}^{2}$

$\boxed{ = - 4x {}^{2} - 5ax + 5a {}^{2} }$

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