Practice mode / Basic Algebra If I2-256=0 the 1 =? A Option A: 14 B Option B: 15 C Option C: 17 D Option D: 16 E Option E: none Correct answer D. 16 Show answer Report a problem How we write and check questions
Question 01 / Basic Algebra (a2bc+ab2c+abc2) / abc = A Option A: ab+ab+bc B Option B: ab+bc+ca C Option C: a+b+c D Option D: none Correct answer C. a+b+c Show answer Open question
Question 02 / Basic Algebra 15x+y=-7 -yx+3y=19 what is the values of 10y? A Option A: -570 B Option B: 50 C Option C: both D Option D: none Correct answer C. both Show answer Open question
Question 03 / Basic Algebra If a=4 b=-5 then a2+b2+2ab=? A Option A: 49 B Option B: ?9 C Option C: ?40 D Option D: 1 Correct answer D. 1 Show answer Open question
Question 04 / Basic Algebra If 16-a=20-b then a-b =? A Option A: ?4 B Option B: 6 C Option C: 4 D Option D: ?6 E Option E: 10 Correct answer A. ?4 Show answer Open question
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