15. If a+b=6 and ab=9 that means a and b must each equal 3. Then plug it into the equation and solve. (3)3+(3)2 = 15
X's cancel 5y = 20 y= 4 X=0
The sixth number should be 16 in order for the mean to be 12
Answer:
your answer is y =-8 hopes this help
take out some of the x's and take out a two so it should look like this.
2x^5(x2-2x-35)
2x5(x-7)(x+5)
x=0,7,-5