Question

please answer these questions guys
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Answer 1

Given y² - y ( a + 3b ) + 3ab

/* Splitting the middle term, we get */

= y² - ay - 3by + 3ab

= y ( y - a ) - 3b ( y - a )

= ( y - a )( y - 3b )

Therefore.,

y² - y ( a + 3b ) + 3ab = ( y - a )( y - 3b )

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