Question

9r2+r-8
plz tell me the answer ​

Answer 1

HI BUDDY!, HERE IS YOUR  ANSWER WITH FULL EXPLANATION.

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Answer:

r=8/9 OR r=-1

Step-by-step explanation:

9r²+r-8=0

Now splitting the middle term,

9r²+r-8=0

9r²+9r-8r-8=0

9r(r+1)-8(r+1)=0

(9r-8)(r+1)=0

Either, 9r-8=0 ⇒r=8/9

Or,r+1=0⇒r=-1

         THANKS  BUDDY  HAVE  A  NICE  DAY        

Answer 2

Answer:

here is the question 9r²+r-8

Step-by-step explanation:

now split the middle numbers

= 9r²+8r-r-8

= r(9r+8) -1(9r+8)

= (9r+8) (r-1)