Evaluate the expression

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Reference no: EM13938834

1) Simplify the following expressions:

a) 2a-7b + 15a2 + 11b

b) 16-0.25  8-1/3

c) 4x2(-2x)3/(-2(-x2)3)2

d) X-2(16-x2)(x(x-4))-1

2. Let m =17 and n=23. Evaluate the expression (m-n)2-2mn/m3-n2

3. Expand the following

a) 9(x-y+3)

b) abc(a2-b2+c2)

c) (r-s+t)(r+s-t)

Reference no: EM13938834

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