6). If a - b = 3 and a2 + b2 = 29, find the value of ab.
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Heya
_______________________________
a - b = 3
SQUARING BOTH SIDE'S
( a - b )² = 3²
=>
a² + b² - 2ab = 9
=>
-2ab = 9 - 29
=>
ab = 10
_______________________________
a - b = 3
SQUARING BOTH SIDE'S
( a - b )² = 3²
=>
a² + b² - 2ab = 9
=>
-2ab = 9 - 29
=>
ab = 10
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