Factirise the following.a. 9x²+25y²-30xy-36
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Answer:
(3x-5y+6)(3x-5y-6)
Step-by-step explanation:
- 9x²+25y²-30xy-36=
- (3x)²- 2*3x*5y+ (5y)² - 6²=
- (3x-5y)²- 6²=
- (3x-5y+6)(3x-5y-6)
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