kailadeshields kailadeshields

15-02-2017
Mathematics

contestada

Simplify this expression. 3x2(7x2 − 9)
A) 21x2 − 9
B) 21x2 − 27x2
C) 21x4 − 9
D) 21x4 − 27x2

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SuperLegend SuperLegend

15-02-2017

3x2(7x2 − 9)
Multiply 3x^2 by 7x^2 and -9(Use distributive property)
Final Answer: D.) 21x^4 - 27x^2

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