Answer:
5(x^2 + 5)
Step-by-step explanation:
The binomial 5х^2 + 25 has the factor 5 in each term. Thus, in factored form, 5х^2+ 25 = 5(x^2 + 5).
If I'm correct the answer would be 8.
Same side angles together form angle with measure 180^{0}. Let x be a measure of smaller angle, then x+20^{0} is measure of bigger angle.
x+x+20^{0}=180^{0}
2x=160^{0}
x=80^{0}.
So measure of smaller angle is 80^{0} and measure of bigger angle is x+20^{0}=80^{0}+20^{0}=100^{0}.