Answer:
1. -22
Step-by-step explanation:
this is the same as this
a^2 - b^2
who is a: square root 10 = v10
whos is b: 2 square root 8 = 2v8
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(v10)^2 - (2v8)^2
10 - 4(8) = 10 - 32 = -22
Working on the next question
