what's: x^4 + 64 factored and what's: (5a^2 - 11a +10)^2 - (4a^2 - 15a +6)^2 show work please ^^
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Originally Posted by ~*chibi-ichigo*~ what's: x^4 + 64 factored and what's: (5a^2 - 11a +10)^2 - (4a^2 - 15a +6)^2 show work please ^^ $\displaystyle x^4+64=x^4-64i^2$ a difference of two squares $\displaystyle (x^2+8i)(x^2-8i)$
Originally Posted by ~*chibi-ichigo*~ [snip] what's: (5a^2 - 11a +10)^2 - (4a^2 - 15a +6)^2 Mr F says: Two ways to do it. Easy way - Apply the difference of two squares formula. Hard way - expand and simplify. show work please ^^ ..