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sergij07 [2.7K]
3 years ago
10

SOLVING QUADRATIC EQUATIONS BY SQUARE ROOT 9p^2-6=642

Mathematics
2 answers:
Aleksandr [31]3 years ago
7 0
9p^2 - 6 = 642;  / + 6 ;
9p^2 = 648;       / ÷9 ;
p^2 = 72 ;
p = + \sqrt{72} or -  \sqrt{72};
Finally, p = +6\sqrt{2} or p = -6\sqrt{2} .
Reil [10]3 years ago
7 0
9p^2-6=642
⇒ 9p^2= 642+6
⇒ 9p^2= 648
⇒ p^2= 648/9
⇒ p^2= 72
⇒ p= 6√(2) or p= -6√(2)

The final answer is p= 6√(2) or p= -6√(2)~
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