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What is x if x squared plus x equals 56?
7 or -8 72+7 = 56 (-8)2+(-8) = 56 You can solve this using some simple algebra. Let x be the number you are looking for. x2 +x-56-0 This can be factored as: (x-7)(x+8)=0 Now use the zero property that says if AB=0, A=0 or B=0 (or both) So x-7=0 and x=7 or x+8=0 and x=-8
What is x to the 2nd power minus x minus 56?
x^(2) - x - 56 is a Quadratic EXPRESSION. This can be factored to ( x + 7)(x - 8) To find the values of 'x' , it needs to be equated to 'zero' Hence it is Quadratic EQUATION x^(2) - x - 56 = 0 ( x + 7)(x - 8) = 0 x + 7 = 0 x = -7 & / or x - 8 = 0 x = 8
What is 807 in expanded form?
(8 x 100) + (0 x 10) + (7 x 1)Eight hundred and seven
How do you write 57480000 in expanded form?
57,480,000 = (5 x 10000000) + (7 x 1000000) + (4 x 100000) + (8 x 10000) + (0 x 1000) + (0 x 100) + (0 x 10) + (0 x 1) OR(5 x 10^7) + (7 x 10^6) + (4 x 10^5) + (8 x 10^4) + (0 x 10^3) + (0 x 10^2) + (0 x 10^1) + (0 x 10^0)
How do you plot x plus y equals 9 x-y equals 7?
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