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What should be subtacted from 2a + 4a – 7ab + I to get -229-7-5-9 . a.a²-9a-6+6b+9b.2a²+9a-6ab+6b+9c.2a²+9a+6b+9d.3a²-5a+6b-8 |
| Answer» LET X be subtracted from 3A 2 −6ab−3b 2 Then,3a 2 −6ab−3b 2 −1−X=4a 2 −7ab−4b 2 +1x=3a 2 −6ab−3b 2 −1−(4a 2 −7ab−4b 2 +1)x=3a 2 −6ab−3b 2 −1−4a 2 +7ab+4b 2 −1x=−a 2 +ab+b 2 −2 | |