Question

factorise r²-r +4
pls give the answers​.pls I will mark u as brain least

Answer 1

Step-by-step explanation:

r²-r+4

r²-2.5r+1.5r+4

r(r-2.5)-1.5(r-2.5)

(r-1.5)(r-2.5)

hence r=1.5and 2.5

Answer 2

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ANSWER BY KRISHNA GARG