3 years ago

4r3 +8r2 −5r−10? It = to (r+2)x(4r^2-5)

Mathematics

1 answer:

tangare [24]3 years ago

7 0

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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