SOLUTION: Hi, I have my homework already done but I really need to get a good grade [100%] on this so I can raise my grade! I am going to give you each problem and answer that I got and coul

Question 83653: Hi, I have my homework already done but I really need to get a good grade [100%] on this so I can raise my grade! I am going to give you each problem and answer that I got and could you please just tell me if they are correct or incorrect. THANK YOU SO MUCH I NEED THIS!
"Find The Product"
1. (5p-6)(5p+6) = 25p[squared]-36
2. (2s+9t)squared =81t[squared]+4s[squared]+36st
"Factor The Polynomial"
3. x[squared]+8x+7 = (x+7)(x+1)
4. -12r[squared]+5r+3 = -(4r+3)(3r+1)
5. -3n[squared]+75 = -3(n+5)(n-5)
6. x[squared]-49 = (x+7)(x-7)
"Solve The Equasion"
7. 21z[squared]+85z-26=0 z= 2/7 , z= -13/3
8. a[squared]-11a+24=0 a= 8 , a= 3
9. 4x[squared]=22x+42 x= -3/2 , x= 7
10. n[cubed]-212n=0 n=0 , n= 11, n= -11
^ 3 answers for that one!

am I 100% right!?
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
check #10 ... maybe just a typo
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