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Answered a Question in Math
You are absolutely correct. There are no solutions. Let's solve the problem to see why.
`sqrt(9y196) +sqrt(196) = sqrt49`
... 
Answered a Question in Math
`y=(x2)^3`
Find the derivative of `f(x)=(x2)^3`
Set the derivative to zero, then solve. `3(x2)^2=0`
`x=2`
... 
Answered a Question in Math
`3x^2+6x4=3`
The solutions to this quadratic equation aren't rational and can't be found by factoring. The quadratic formula...

Answered a Question in Math
`(p+7)/p + (2p)/(p+3)`
Multiply each term by a factor that will equate both the denominators. Here, both terms need a...

Answered a Question in Math
`2a (1/3)a^2 +5a +(1/9)a`
`2a a^2/3 + 5a + a/9`
Combine like terms.
`7a  a^2/3 +a/9`
Remember in order...

Answered a Question in Math
Solving linear systems using the elimination method is also known as using the addition/subtraction method. The goal is to "eliminate"...

Answered a Question in Math
`x^2+8x78=5`
Add `78` to both sides.
`x^2+8x= 73`
In order to create a trinomial square on the left side of the...

Answered a Question in Math
If the item is marked off 15%, then you are paying 85% of the original price. Let `x` be the original price.
`.85(x) = 99`
... 
Answered a Question in Math
`3(y3y)+4 =4(3yy)+6+13y`
Start by combining like terms inside the parentheses.
`3(2y) +4 = 4(2y) +6 +13y`
... 
Answered a Question in Math
`1/3(x+90)=0`
Use the distributive property to multiply `1/3` by both `x` and `90` .
`1/3(x) + 1/3(90) =0`
...
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