I think what you mean is:

Then using our rules of exponents, this is the same as
We are asked to find unknown or the missing number to complete the polynomial given in the problem which is x² + ?x -49. First, let us equate the number to be equal to zero such as it would become x² + ?x - 49 = 0. Next, we need to find the factors such that it would produce a difference of squares and these two factors are a = +7 and b = -7. Hence, the complete solution is shown below:
(x + 7) (x-7) = 0
perform distribution and multiplication of terms such as shown below:
x² + 7x - 7x - 49 = 0
Combine the same term such as we can either add or subtract +7x to -7x and the result will be equal to 0x.
x² + 0x - 49 = 0
Therefore, the missing number is 0. The answer is 0 which will result to x² +0x - 49.
Answer:
x = -3/4
Step-by-step explanation:
<u>Step 1: Identify the equation</u>
8x + 3 = 4x
<u>Step 2: Move x's to one side and number to the other side</u>
8x + 3 - 4x - 3 = 4x - 4x - 3
4x = -3
<u>Step 3: Make x by itself</u>
4x / 4 = -3 / 4
x = -3/4
Answer: x = -3/4
Answer:
<u>The answer is that 36a⁴/b² is 0.</u>
Step-by-step explanation:
Let's simplify the expression given to us, this way:
3a^2b^-4/12a^-2b^-2
3a²b⁻⁴ ÷ 12a⁻²b⁻²
3a²/b⁴ ÷ 1/12a²b²
3a²/b⁴ * 12a²b²/1
36a⁴/b²
But let's recall that if a = 0 and b = 0, then we have:
36 * 0⁴ / 0² = 0
<u>The answer is that 36a⁴/b² is 0.</u>