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in Algebraic Expressions and Operations on them by (46.9k points)
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i. 9p + 16q; 13p + 2q 

ii. 2a + 6b + 8c; 16a + 13c + 18b 

iii. 13x² – 12y²; 6x² – 8y²

1 Answer

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Best answer

i. (9p + 16q) + (13p + 2q) 

= (9p + 13p) + (16q + 2q) 

= 22p + 18q

ii. (2a + 6b + 8c) + (16a + 13c + 18b) 

= (2a + 16a) + (6b + 18b) + (8c + 13c) 

= 18a + 24b + 21c 

iii. (13x² – 12y²) + (6x² – 8y²) 

= (13x² + 6x²) + [(-12y²) + (-8y²)] 

= 19x² + (-20y²) = 19x² – 20y²

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