1.

Factorise:84 - 2r - 2r×r​

Answer»

ANSWER:

(2r - 14)(R + 6)

Step-by-step explanation:

84 - 2r - 2r^2

= 2r^2 -2r - 84

= 2r^2 + 12r - 14r - 84

= 2r(r + 6) - 14(r + 6)

= (2r - 14)(r + 6) ANS

Hope I helped



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