Problem No. 1.4 / 10 pts. Solve the given system using elementary row operation Do not use matrices Show all your work, do not skip steps. Displaying only final answer is not enough to get credit...

Question

Question

math algebra

Answer 1

Answer #1

5x1 + 4x2 + 2x3 = -5

5x1 - 8x2 + 8x3 = - 3

4x2 - 2x3 = - 3

solving by elementary row operations

ivide row1 by 5 1 4/52/5-1 0 4 2 -3 Add (-5 row1) to row2 1 A521 012 6 2 Divide row2 by -12 14/5 2/5-1 1 1/2 1/6 0 4 -23 Add

Add (1 row3) to row1 14/5 2/5 0 0 1 1/2 0 Add (-4/5 row2) to row1 1 0 4/5 0 0 00 1

this system has no solution

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Answer 2

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