The perimeter of a triangle is 8y² - 9y+ 4 and its two sides are 3y² - 5y and 4y² + 12.
Find its third side.
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Answer:
y² - 4y - 8.
Step-by-step explanation:
After adding the two sides i.e.
( 3y² - 5y ) + ( 4y² + 12 ) = 7y² - 5y + 12. .... ( i )
After subtracting ( i ) from the perimeter i.e.
( 8y² - 9y + 4 ) - ( 7y² - 5y + 12 ) = y² - 4y - 8
Hope this helps! And please give me brainliest.
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