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Sagot :
Answer:
Step 1: (ab-9)(ab+8)
Step 1: (ab-9)(ab+8)Step 2: ab x ab +8 x ab -9 x ab -9 x 8
Step 1: (ab-9)(ab+8)Step 2: ab x ab +8 x ab -9 x ab -9 x 8Step 3: ab2 +8ab-9ab-72=
Step 1: (ab-9)(ab+8)Step 2: ab x ab +8 x ab -9 x ab -9 x 8Step 3: ab2 +8ab-9ab-72=Step 4: ab2 -ab-72
Answer:
a²b²-ab-72
Step-by-step explanation:
(ab - 9)(ab + 8)
= a²b²-ab-72
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