-21x2 +6x-12 thats is 21

The length of a rectangle is 3x+2 . Its area is 21x2−x−10 . To find an expression that represents the width of the
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Multiply: (3x+2)(7x−4) (1 point) Responses 10x2+2x−2 10 x squared plus 2 x minus 2 21x2+2x−8 21 x squared plus 2 x minus 8
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Multiply: (3x+2)(7x−4)(1 point) Responses 10x2+2x−2 10 x squared plus 2 x minus 2 21x2+2x−8 21 x squared plus 2 x minus 8
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21x2 + 15x
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21x2 + 15x = 0
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simplify: 9X2---- 21X2
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2. asked by Anonymous
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-21x2 +6x-12thats is 21 to the 2 power thank you for your help
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2. asked by rome
3. 583 views
Solve by Factoring:1.) x²- x + 12 = 0 2.) 4x³ + 21x² - 18x = 0 3.) x³- x² - x + 1
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2. asked by Eliza
3. 1,367 views
Divide 14x3 − 21x2 − 7x by −7x
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11.Factor the expression. 21x2 + 55x + 14 (3x – 7)(7x + 2) (3x – 7)(7x – 2) (3x + 7)(7x + 2) (3x + 7)(7x – 2)
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2. asked by fish
3. 33 views