Question

calcule os monômio

a)(-10x²y³)+(8x²y³)

b) (-6x²y)-(-5y²)​

Answer 1

Oie, tudo bom?

a)

$= ( - 10x {}^{2} y {}^{3} ) + (8x {}^{2} y {}^{3} ) \\ = - 10x {}^{2} y {}^{3} + 8x {}^{2} y {}^{3} \\ = ( - 10 + 8)x {}^{2} y {}^{3} \\ \boxed{ = - 2x {}^{2} y {}^{3} }$

b)

$= ( - 6x {}^{2} y) - ( - 5y {}^{2} ) \\ \boxed{ = -6 x {}^{2}y + 5y {}^{2} }$

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