(2a+5b)(3a+4b)-(7a+3b)(2a+5b)
Answers
Answered by
2
Answer:
6a^2+8ab+15ab+20b^2-(14a^2+35ab+6ab+15b^2)
5b^2-8a^2-18ab
Answered by
7
Answer:
(2a + 5b) (-4a + b)
Step-by-step explanation:
(2a+5b)(3a+4b) - (7a+3b)(2a+5b)
STEP 1: Take out common factor (2a + 5b)
(2a+5b)(3a+4b) - (7a+3b)(2a+5b)
= (2a + 5b) [ (3a + 4b) - (7a + 3b) ]
STEP 2: Evaluate the terms in the bracket
(2a + 5b) [ (3a + 4b) - (7a + 3b) ]
= (2a + 5b) [ 3a + 4b - 7a - 3b ]
= (2a + 5b) (-4a + b)
Answer: (2a + 5b) (-4a + b)
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