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(b) x2-18x+ 81(a) 2+ 4r+ 4(c) 4x2+ 4x+ 1(e) 25a2-60ab+36b(g) 40r--12(x-y)xy)+9(x +y)( 4(0 9a2 -30ab+ 250 |
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Answer» all are of type (a+b)^2=a^2+2ab+b^2(1) (x+2)^2(2) (x-9)^2(3) (2x+1)^2(4) (2/3a+b)^2(5) (5a-6b)^2(6) (3a-5b)^2(7) (2(x-y)-3(x+y))^2 |
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