exam Maths Puzzle Numerical Ability

Please show me how to solve. Thanks!

(X - 3) (2X 3 - 15X - 6)

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exam Other Question

(4|5-3|2)(2|5+4|2) im stuck on this problem and need some help thanks Graph 2x-4y<8
This is what I did:
-4y<-2x+8
-4y/-4<-2x/-4+8/-4
y<1/2x-2
Is this right....please help!!