Can anyone finish this equation? (10)^2=(x/2)^2+((x+4)/2)^2
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I know that the next step looks like this, but I don't understand where the 2x that is underlined came from?? Would appreciate it if anyone could answer that question 100=x^2/4+x^2/4+2x+4
Originally Posted by Yaymath Can anyone finish this equation? (10)^2=(x/2)^2+((x+4)/2)^2 Not so bad...
I understand everything except the last part (did you do the additive inverse of 400 or 16?) (how did this become to (x - 12)(x+16)=0 The rest is clear for me, it's just there i'm confused
Originally Posted by masters Not so bad... I factored the above equation. You could have used the quadratic formula if you wanted to get the values for x. I used the zero product property here. The zero product property says that if ab=0, then a=0 or b=0. Either x - 12= 0 or x + 16 = 0 Then I solved each equation to get: ..
Thanx alot you are indeed the master Bye and thnx again
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