5r^2+2r_3=0 factoring method
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Step-by-step explanation:
5r²+2r-3
5×3=15
5r²+5r-3r-3
5r(r+1)-3(r+1)
(5r-3)(r+1)
Answered by
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Answer:
multiply first and last term than take factor to +2
Step-by-step explanation:
we get
5r‹2+2r-3=0
5r‹2+5r-3r-3=0
take 5r and -3 common we get
5r(r+1)-3(r+1)=0
therefore ,
(r+1)(5r-3)=0
then,,
r=-1,5r=3
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