256 - 4x² - 12xy - 9y² factorise
Answers
Answered by
0
Step-by-step explanation:
4x
2
+12xy+9y
2
=(2x)
2
+2(2x)(3y)+(3y)
2
=(2x+3y)
2
Answered by
0
Answer:
The answer is (16 + 2x + 3y)(16 - 2x - 3y)
Step-by-step explanation:
256 - 4x² - 12xy - 9y²
= 16² - {(2x)² + 2×2x×3y + (3y)²}
= 16² - (2x + 3y)²
= (16 + 2x + 3y)(16 - 2x - 3y)
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