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### Grade 7 - Mathematics4.46 Fill in the Blanks - II

 Example: x2+16x+_____? Solution: (x)2 + 2.8.x + _____ This is the form of a2+2.a.b+____ If the given expression is to be the square of a binomial then last term = b2 = 82 = 64 Expression is = x2+16x+64 which is equal to (x+8)2. Directions: Fill in the following problems and write the answer in terms of (a+b)2 or (a-b)2 form. Also write at least ten examples of your own.
 Q 1: 9x2 + 12x + _____.(2x+2)2(x+5)2(4x+2)2(3x+2)2 Q 2: _____ + 72x + 81.(4x-5)2(4x-9)2(2x-9)2(4x+9)2 Q 3: _____ - 12x + 4.(x+5)2(5x+2)2(3x-2)2(3x+2)2 Q 4: 16x2 + _____ + 25.(4x+5)2(2x+5)2(6x+5)2(x+5)2 Q 5: 4x2 + 16x + _____.(2x+4)2(x+3)2(2x+2)2(x+2)2 Q 6: 12x2 - _____ + 16.(3x-2)2(3x-1)2(2x-4)2(3x-4)2 Question 7: This question is available to subscribers only! Question 8: This question is available to subscribers only!

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