Explain the method of completing the square of a quadratic equation class 10
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imagine:5x²-6x-2
step 1: x²-6/5 x -2/5 = 0 divding equation with 5
step 2 : x²-6x/5 = 2/5
step 3: x²-6x/5 + (3/5)² = 2/5 +(3/5)² adding (3/5)² on both sides
step 4: (x- 3/5)² = 2/5 + 9/25
step 5: (x- 3/5)² = 19/25
step 6: x-3/5=√19/√25
step 7: x = 3/5+√19/5
so x = 3+√19/5
s0 x = 3+√19/5 or 3-√19/5
step 1: x²-6/5 x -2/5 = 0 divding equation with 5
step 2 : x²-6x/5 = 2/5
step 3: x²-6x/5 + (3/5)² = 2/5 +(3/5)² adding (3/5)² on both sides
step 4: (x- 3/5)² = 2/5 + 9/25
step 5: (x- 3/5)² = 19/25
step 6: x-3/5=√19/√25
step 7: x = 3/5+√19/5
so x = 3+√19/5
s0 x = 3+√19/5 or 3-√19/5
perfectbrainly:
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