if a + b is equal to 7 ,ab is equal to 6 find a square + b square
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Hi ,
a + b = 7 ---( 1 )
ab = 6 ---( 2 )
a² + b² = ( a + b )² - 2ab
= 7² - 2 × 6
= 49 - 12
= 37
I hope this helps you.
: )
a + b = 7 ---( 1 )
ab = 6 ---( 2 )
a² + b² = ( a + b )² - 2ab
= 7² - 2 × 6
= 49 - 12
= 37
I hope this helps you.
: )
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