Practice mode / Basic Algebra If a x 51 x 48 x 54 = 16 x 17 x 18 then a = A Option A: 1 ? 27 B Option B: 1 ? 250 C Option C: 25 D Option D: 27 E Option E: 500 Correct answer A. 1 ? 27 Show answer Report a problem How we write and check questions
Question 01 / Basic Algebra If b = -3 and a = 2 then a2 + b2 + 2ab =? A Option A: ?17 B Option B: ?16 C Option C: ?7 D Option D: 16 E Option E: 17 Correct answer A. ?17 Show answer Open question
Question 02 / Basic Algebra If 9/a = 7/a2 then a =? A Option A: 7 ? 9 B Option B: 9 ? 7 C Option C: 7 D Option D: 9 E Option E: 63 Correct answer A. 7 ? 9 Show answer Open question
Question 03 / Basic Algebra (ab x (a+b)))/(1/a+1/b) =? If a = 1 b = 2 A Option A: 3 ? 8 B Option B: 8 ? 4 C Option C: 11 ? 8 D Option D: 8 ? 2 E Option E: 9 ? 2 Correct answer D. 8 ? 2 Show answer Open question
Question 04 / Basic Algebra (a+b)2 + (b+c)2 = A Option A: a2 + 2b2 + 2ab + c2 + 2bc B Option B: a2 + b2 + c2 + 2ab + 2bc C Option C: a2 - b2 + c2 + 2ab + 2bc D Option D: 2a2 + 2b2 + 2c2 + ab + bc E Option E: none Correct answer A. a2 + 2b2 + 2ab + c2 + 2bc Show answer Open question
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