Answer:
80
Step-by-step explanation:
If I am reading the question correctly it would come out to -6x+42 First do all the addition and squaring, then factor in that negative. You come out to -2x^3 +2x^3-4x-2x+25+5+9+3. The x^3's cancel, the -x's add to -6x, then all that other adds to 42.
Answer:
20
Step-by-step explanation:
-10-5x(-6)
-10+30
20
Answer:
9.45
Step-by-step explanation:
2.70*3 = 8.10
8.10 + 1.35= 9.45
-5a^2 - 7a = -a x (5a + 7)
let me know if you have any other questions
:)
