Question

medal will be given help 1 question
r^2 - 2r -15

Answer 1

I think this what you trying to do right?

r2 + -2r + -15

Reorder the terms:
-15 + -2r + r2

Factor a trinomial.
(-3 + -1r)(5 + -1r)

Final result:
(-3 + -1r)(5 + -1r)

Answer 2

Oh my bad, my bad. Don't listen to what I just did this is it!

Step 1 :

Simplify r2-2r - 15
Trying to factor by splitting the middle term

1.1 Factoring r2-2r-15

The first term is, r2 its coefficient is 1
The middle term is, -2r its coefficient is -2
The last term, "the constant", is -15

Step-1 : Multiply the coefficient of the first term by the constant 1 • -15 = -15

Step-2 : Find two factors of -15 whose sum equals the coefficient of the middle term, which is -2

-15 + 1 = -14
-5 + 3 = -2 Tiger found it!!
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, (-5) and (3)
r2 - 5r + 3r - 15

Step-4 : Add up the first 2 terms, pulling out like factors :
r • (r-5)
Add up the last 2 terms, pulling out common factors :
3 • (r-5)
Now add up the four terms of step 3 :
(r+3) • (r-5)
Which is the desired factorization

Final result :

(r + 3) • (r - 5)

Answer 3

r^2-2r-15
1*15=-15
5-3=2
5*-3=-15

Answer 4

OMGGGGGGG THANK YOU SO MUCHHHHHHHHHHHHH CAN YOU HELP ME WITH ONE MORE

Answer 5

thank you for the answer also @surjithayer

Answer 6

1. 6x^2 -5x-6
2. v=8y^3 + 10y^2 +3y
last ones promise!!!

Answer 7

@surjithayer That was the right answer?

Answer 8

yessss that was the right but they put it in R + 3r -5 but you had it correct!!!

Answer 9

1.
6*-6=-36
9*-4=-36
9-4=5
write -5=-(9-4)
2.
v=y(8y^2+10y+3)
8*3=24
6*4=10
6*4=24

Answer 10

1. 6x^2 -5x-6
Step 1 :

Simplify 6x2-5x - 6
Trying to factor by splitting the middle term

1.1 Factoring 6x2-5x-6

The first term is, 6x2 its coefficient is 6
The middle term is, -5x its coefficient is -5
The last term, "the constant", is -6

Step-1 : Multiply the coefficient of the first term by the constant 6 • -6 = -36

Step-2 : Find two factors of -36 whose sum equals the coefficient of the middle term, which is -5

-36 + 1 = -35
-18 + 2 = -16
-12 + 3 = -9
-9 + 4 = -5 Tiger found it!!
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, (-9) and (4)
6x2 - 9x + 4x - 6

Step-4 : Add up the first 2 terms, pulling out like factors :
3x • (2x-3)
Add up the last 2 terms, pulling out common factors :
2 • (2x-3)
Now add up the four terms of step 3 :
(3x+2) • (2x-3)
Which is the desired factorization

Final result :

(2x - 3) • (3x + 2)

Answer 11

that asnwer was correct and perfect dudeeeeeeeee.

Answer 12

nevermind on the other one lollll

Answer 13

@bettylee I'm sorry me or him? lol

Answer 14

LOLLLLLL you ( :

Answer 15

Lol No prob, glad I could help! ✌ and ❤