Which mathematical statement is correct?
A. 6x2 + 5x – 21 =(3x + 7)(2x + 3)
B. 15x2 - 67x2y2 + 72y = (5x - 8y)(3x - 9y)
C. 4x2 + 9 = (2x-3)2
D. 9x2 - 36 = (3x-6)(3x+6)
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Which mathematical statement is correct?
A. 6x2 + 5x – 21 =(3x + 7)(2x + 3)
B. 15x2 - 67x2y2 + 72y = (5x - 8y)(3x - 9y)
C. 4x2 + 9 = (2x-3)2
D. 9x2 - 36 = (3x-6)(3x+6)
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Answer:
my answer is Letter A.
Step-by-step explanation:
hope it can help you