Question

(z+6)(z-5) find product using suitable identity ​

Answer 1

Answer:

z(z-5) +6(z-5)=0

z^2 -5z +6z -30=0

z^2 +z-30 =0

z^2 +6z-5z-30=0

z(z+6) -5(z+6) =0

(z+6)(z-5) =0

z+6=0 z-5=0

z=-6 z=5

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