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Sep 30, 2020 · x² - 64 = 0 => x² = 64 => x = √64 = ± 8. So, x = ± 8.
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Substitute the values a=1 a = 1 , b=0 b = 0 , and c=−64 c = - 64 into the quadratic formula and solve for x x . 0±√02−4⋅(1⋅−64)2⋅1 0 ± 0 2 - 4 ⋅ ( 1 ...
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Jan 29, 2020 · Here's a method which interpolates geometry into the above problem: Prerequisites: cos(A)=b2+c2−a22bc cos ⁡ ( A ) = b 2 + c 2 − a 2 2 b c ...
Jun 7, 2015 · 1 Answer ; x2−64=0 ; x2=64 ; x=±8.
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Feb 23, 2024 · Let us take a quadratic equation ax2+bx+c=0 a x 2 + b x + c = 0 . Let its roots be α,β .
Jul 6, 2018 · We have known the value of a and c, to describe b with a and c, we can put a² and c² together as a known part. c²-a²=a²-a²+b². c²-a²=b².