Answer:
(5a - [2b - 7c]) and (5a + [2b + 7c])
Step-by-step explanation:
Factor 25a^2 - 4b^2 + 28bc - 49c^2.
Note that - 4b^2 + 28bc - 49c^2 involves the variables b and c, whereas 25a^2 has only one variable. Thus, try to rewrite - 4b^2 + 28bc - 49c^2 as the square of a binomial:
- 4b^2 + 28bc - 49c^2 = -(4b^2 - 28bc + 49c^2), or
-(2b - 7c)^2.
Thus, the original 25a^2 - 4b^2 + 28bc - 49c^2 looks like:
[5a]^2 - [2b - 7c]^2
Recall that a^2 - b^2 is a special product, the product of (a + b) and (a - b). Applying this pattern to the problem at hand, we conclude:
Thus, [5a]^2 - [2b - 7c]^2 has the factors (5a - [2b - 7c]) and (5a + [2b + 7c])
Answer:
something
Step-by-step explanation:iwdyucbjcnwiuvbevjeyivbejkbchevbhe chksdb gbg svgfv e jcf dfv ve dc n dhcvgfefvgehncsjcbhdvdgvhj sn jshgvsjcvsgsdcvscjbsdguvsjcbs jbfjhgbhbcshbhvsgvdjjh jggvgcsjvjhfv
Answer:
0.5
Step-by-step explanation:
<h3>
Answer: x = 25</h3>
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Explanation:
Add up the parallel sides, and divide by 2
x = (15+35)/2
x = (50)/2
x = 25
The midsegment is the average of the two parallel sides.
Answer:
Step-by-step explanation:
Write an equation of the line in slope intercept form that passes through (3, 1/2) and has a slope of 4.
