1. It says "x^2+2x+1=0" ... i know you have to do that adding multiply thing but it just doesn't work out .. i have a feeling this cannot work and that it's a typo .. help ??
other Problem: √75 .. and the teacher wrote "hint: put the perfect square on the left ".. which i think is 25 but i dont know wht to do from there ..
P.S. she gave us this homework to refresh our memory from last year since today ws my 2nd day back in school so dont say i dont know how to do it .. coz i forgot it all over da summer
other Problem: √75 .. and the teacher wrote "hint: put the perfect square on the left ".. which i think is 25 but i dont know wht to do from there ..
P.S. she gave us this homework to refresh our memory from last year since today ws my 2nd day back in school so dont say i dont know how to do it .. coz i forgot it all over da summer
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Answer 1 : x = -1
Answer 2: 5√3
Answer 2: 5√3
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The first question is x^2+2x+1=0
The answer is (x+1)(x+1)=0 x= -1.
The second question is to find the square root of 75.
The answer is 5√3 which is the square root of 3 times the square root of 25.
The answer is (x+1)(x+1)=0 x= -1.
The second question is to find the square root of 75.
The answer is 5√3 which is the square root of 3 times the square root of 25.
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x^2+2x+1=0
(x+1)^2
get used to using the quadratic formula
its going to be your best friends for the next several years
√75
√75= √25* √3
=5√3
(x+1)^2
get used to using the quadratic formula
its going to be your best friends for the next several years
√75
√75= √25* √3
=5√3
-
1) Factor to get (x + 1) (x + 1) = 0
or in other words (x + 1)^2 = 0
Therefore x = -1
2) √75 = √(25 * 3) = √25 * √3 = 5√3
or in other words (x + 1)^2 = 0
Therefore x = -1
2) √75 = √(25 * 3) = √25 * √3 = 5√3