Please help!!!! I'll give brainliest! Image of question is attached.
2 answers:
Answer for the first box is 8
Answer for the second box is 64
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Explanation:
The expression x^2-16x+64 factors to (x-8)^2. We can see this by FOILing out (x-8)^2 = (x-8)(x-8) to get x^2-8x-8x+64 = x^2-16x+64. You can also use the box method as shown in the diagram below. The box method is a visual way to keep track of the terms. Each cell in the table is the result of multiplying the outer values. Example: the value 64 in row2,column2 is the result of 8*8 = 64. So this shows why 8 goes in the first answer box.
The 64 in the second answer box is from the 64 from step 3. It gets transferred/copied down to step 4.
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Answer:
137
Step-by-step explanation:
First start with what you know. The measure of the interior angles of a triangle total to so 51 + 2x + x = 180, then 51 + 3x = 180, 3x = 129, so
x = 43, the exterior angle is on a straight line with x so
x + exterior angle = 180 [since they are supplementary], since x = 43 then
43 + e = 180, so e has to be 137