x2+12x+11=0
(x+11)(x+1)=0
x=-11 or x=-1
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It is: 36 plus 121 = 157
2(2x-11)(3x+5)
-0.2x2+12x+11 = 0 Using the quadratic equation formula will give you two solutions which are: x = 30 + the square root of 955 = 60.90307428 to 8 decimal places. or: x = 30 - the square root of 955 = -0.90307428 to 8 decimal places.
When the sum of a number plus 3 is squared, it is 11 more than the sum of the number plus 2 when squared.
12x - 5 = 11x + 5(1) add 5 to both sides:12x - 5 + 5 = 11x + 5 + 512x = 11x + 10(2) next subtract 11x from both sides:12x - 11x = 11x - 11x + 10x = 10