factorise x(a+7)-y(b-8)
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Answer:
xa + 7a
Step-by-step explanation:
the upper answer is .correct
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xa+7x-yb+8y
into two 2-term polynomials
+7x+xa and -yb+8y
xa+7x and -yb+8y
xa-yb and +7x+8y
xa+8y and -yb+7x
+8y+xa and -yb+7x
-yb+xa and +7x+8y
●ax+7x-by+8y●
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