BySam91712
Number c)
I first added everything to the left and then calculated. My answer is that a is less than 10.
But the solution booklet says a<25
HOWðŸ˜
Thank you, I have homework soon :,)
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First left multiplies:
x2+10x+25=10x+a
Here you can see that 10x will lift, so the 25 to the right:
x2=a-25
x=±√(a-25)
There is no solution for a-250, i.e. for a <25. The solution issue is right...
Thank you.
(x + 5)2 = 10 * x + a
x2 + 10 * x + 25 – 10 * x = a
x2 = a – 25
x = +-√(a – 25)
For a < 25 there is no real solution because the value below the root becomes negative.
Thank you.