The square of a number is 2.89? The sum of all negative integers whose absolute value is greater than 3.6 but less than 6.3 is? 1 / 4 divided by (- 2 and 2 / 1) + (11 and 1 / 4 + 2 and 1 / 3-13 and 4 / 3) multiplied by 24 =? | A-1 | + | B + 2 | = 0 2A + B. there will be more questions about + 100 | Math enthusiast | Mathematical art

The square of a number is 2.89? The sum of all negative integers whose absolute value is greater than 3.6 but less than 6.3 is? 1 / 4 divided by (- 2 and 2 / 1) + (11 and 1 / 4 + 2 and 1 / 3-13 and 4 / 3) multiplied by 24 =? | A-1 | + | B + 2 | = 0 2A + B. there will be more questions about + 100

Let this number be x, then x ^ 2 = 2.89, then 100x ^ 2 = (10x) ^ 2 = 289, you should have the square of 17 as 289, then 10x = plus or minus 17, x = plus or minus 1.7, so X1 = 1.7, X2 = - 1.7

What are the numbers to the second power of 5?

4X square + 4x + 10 = 1-8x matching method

Solution:
4x^2+4x+10=1-8x
4x^2+12x+9=0
4(x^2+3x+(3/2)^2-(3/2)^2)+9=0
4(x+3/2)^2=0
therefore
x=-3/2

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