A gardener is laying down sod (grass) at a newly built house. The rectangular front yard measures 52.1 ft by 26.4 ft. Each order
1 answer:
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Answer:
x 4
Step-by-step explanation:
4x^2 - 64 0 ; move 64 over
4x^2 64 ; divide by 4
x^2 16 ; take square root of both sides
x 4
The expression is telling you to proceed as follows:
- Pick some number
- Pick some number
- Compute the square of
- Multiply it by 4
- Subtract
from this result.
So, first of all, there's no point in fixing , because x doesn't appear in the expression. As for the evaluation, let's follow the aforementioned steps with fixed values:
- Pick
- Pick
- Compute
- Multiply it by 4:
- Subtract
from this result: