a+b=9
ab=20
Find=a^4+b^4
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Answer:
Step-by-step explanation:
Hi ,
It's given that ,
a + b = 9 ,
ab = 20
a² + b² = ( a + b )² - 2ab
= 9² - 2 × 20
= 81 - 40
= 41
I hope this helps you .
: )