Answer: =x2+7x+5
Step-by-step explanation:
−3x2+2x−4+4x2+5x+9
=−3x2+2x+−4+4x2+5x+9
Combine Like Terms:
=−3x2+2x+−4+4x2+5x+9
=(−3x2+4x2)+(2x+5x)+(−4+9)
=x2+7x+5
Answer:
=x2+7x+5
Consider this option/solution.
P.S. The method of solution is Gauss' method.
Answer d, because the equation is stating 3= $4.41, we are trying to figure out how much 4 cost
Put together the like terms, -k + kh + h. -k is -5 they are both negatives so it would be +5. 5 +kh +h. Next is 5 + -5 x -2. Two positives make a negative so it's 5 + -5 x -2, -5 x -2= 10 + 5 =15. so your answer is 15