If a=4 b=-5 then a2+b2+2ab=?
Correct answer D. 1
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See allIf 16-a=20-b then a-b =?
Correct answer A. ?4
If (p2-q2) / (p+q) = 14 then p-q =?
Correct answer E. 14
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If 10a + 36=70/b what is a x b=?
Correct answer B. 7-18b/5
If a2-9 = 0 What is the value of a?
Correct answer C. 3
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