Question

1)Simplify the expression x(2x-1) + 5 and its value at x = -2.
2)Using suitable identities find (xy + 3p)2.​

Answer 1

Answer:

put x= -2

=-2(2(-2)-1)+5

=8-1+5

=2

2) (xy)²+(3p)²+2xy3p

x²y²+9p²+6xyp....

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