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Algebra problems 30 to 39 |
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to problems 21 to 30
to problems 40 to 49
30.
Solve x if :
6x = 32x - 22x

31.
Prove that
tan(10) + tan(20) + tan(50) = tan(60)

32.

"als" = "if"
"bereken" = "calculate"

33.
Calculate (without calculator) x if


34.
Given is:
a + b + c + d = 4
ab + ac + ad + bc + bd + cd = -7
Calculate:
a2 + b2 + c2 + d2

35.
Find values for x and y which satisfy:


36.
Calculate using pencil and paper:


37.
Find P(x) if P(x+1) - P(x) = x

38.
Given:

Calculate


39.
Given:

Calculate:


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