Question

The sum of -8x² + 6y² + 5 and 2x² - 3y² is:

a) 6x² + 3y² + 5
b) -3x²- 4y²-5
c) -6x² + 3y² +5
d) None​

Answer 1

Answer:

$\huge{\underline{\textsf{\textbf{~~~Answer}}}}$

c) -6x² + 3y² +5

= -8x² + 6y² + 5 + 2x² - 3y²

=( -8x² +2x² )+ (6y² - 3y² ) + 5

= -6x² + 3y² +5

Answer 2

$\huge{ \red{ \fbox{6x² + 3y² +5 }}}$

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