If its the question i think it is, the answer is B. the student did not properly simplify radical
Answer:
100
Step-by-step explanation:
10x10= 100
10-100= -90
-90 + 10 = -80
(-80)
<h3>
Answer:</h3>
B) (x + 7)^2 = 20
<h3>
Step-by-step explanation:</h3>
You can subtract 34 from the original equation to get
... x^2 +14x = -29
Now, you can add the square of half the x-coefficient, and you will have ...
... x^2 +14x +49 = -29 +49
... (x +7)^2 = 20 . . . . . . matches selection B
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<em>Comment on answer choice A</em>
The question asks for the form (x -p)^2 = q, but that does not mean that p must be positive. Here, p=-7 and q=20.
The correct answer to your question is number 2
Answer:
26,please check my calculations in explanation.
Step-by-step explanation:
3+3+2+2+4+4+4+4