Answered

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4r3 +8r2 −5r−10? It = to

(r+2)x(4r^2-5)

Sagot :

helenbeastie

Answer:

4r^3+8r^2-5r-10

= 4r^2(r+2)-5(r+2) [Factorise out like terms; distributive law of multiplication to check]

=(4r^2-5)(r+2) [Combine expressions]

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