Question

Factorise:
84 - 2r - 2r×r​

Answer 1

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