Question

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Answer 1

(4x) (-3x) = -12x∧2.........la a

3mn(5m+6n-7)=

15m∧2n+18mn∧2-21mn..... la e

(2x+3y) (-3x+2y)=

-6x∧2+4xy-9xy+6y∧2

-6x∧2-5xy+6y∧2......es la d

75x∧2y∧3÷5xy∧2=

15xy.... la a