Write an expression for four times the product of -9 and x and then simplify it.
2 answers:
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Answer:
x = -4
Step-by-step explanation:
Square both sides:
The square root and the square will cancel to leave simply the argument within the square root:
-5 - 2x = -1 - x
Now simply isolate the variable x:
x = -5 + 1 = -4
Check to see if x = -4 will work:
This works, so we know that x = -4 is a solution.
Hope this helps!