x-5-2=3 radical sign is under the x-5. x= x+7+5 radical sign is under the x+7 Multiply (36 +2)(4-63) simplify (9x)^2 Is that 3x? -125c^3 Find the domain of the given function. F(x)=2x-3 radical sign is under the 2x-3. Thank you
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Originally Posted by rowdy3 x-5-2=3 radical sign is under the x-5. Thank you The first two are similar here is the first add two to both sides cube both sides
x= x+7+5 Would I subtract 5 from x? That would give me -5= x+7. I would square everything (-5)^2 = x=( x+7)^2. 25= x+7. I subtract 7 and get x=18.
Originally Posted by rowdy3 x= x+7+5 Would I subtract 5 from x? That would give me -5= x+7. I would square everything (-5)^2 = x=( x+7)^2. 25= x+7. I subtract 7 and get x=18. it is a little hard to follow with your formatting but Now square both sides collectin like terms So x=2 or x=9 we need to check both solutions to see if they work plugging in 2 we get so 2 is Not a solution if you check 9 it does work so it is the only solution
2x+3 =9 (2x+3)^2 = (9)^2 2x+3=81 -3 -3 2x/2 = 78/2 x=39 simplify the following radicals (9x)^2 My answer is 9x -125c^3 Would that be -5c
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