Question

Add-

(i) -7mn + 5, 12mn + 2, 9mn - 8, -2mn - 3
(ii) 4x²y , -3xy² , -5xy², 5x²y

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Answer 1

Given:-

• -7mn + 5, 12mn + 2, 9mn - 8, -2mn - 3

Solution:-

⇢ -7mn + 5 + 12mn + 2 + 9mn - 8 + (-2m - 3)

⇢ -7mn + 5 + 12mn + 2 + 9mn - 8 - 2mn - 3

⇢ -7mn + 12mn + 9mn -2mn + 5 - 8 - 3

⇢ ‎ ‎ ‎ ‎ ‎ ‎5mn + 7mn + 7 - 11

⇢ 12mn - 4

$\Rightarrow$ Answer is 12mn - 4

Given:-

• 4x²y , -3xy² , -5xy², 5x²y

Solution:-

⇢ 4x²y , -3xy² , -5xy², 5x²y

⇢ 4x²y + (-3xy²) + (-5xy²) + 5x²y

⇢ 4x²y + 5x²y - 3xy² - 5xy²

⇢ 9x²y - 8xy²

$\Rightarrow$ Answer is 9x²y - 8xy²

Answer 2

Step-by-step explanation:

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