Worksheet on Square of the Difference of Two Binomials
Practice the questions
given in the worksheet on square of the difference of two binomials. We know,
square of a binomial means multiplying a binomial with itself.
See the formulas to expand
the square of the difference of two binomials.
Find the square of the following:
(i) (x – 7)
(ii) (3 – 11y)
(iii) (x – 1/x)
(iv) (√5x – 1/√5x)
Use the formula for squaring the binomials and evaluate:
(i) If x - y = 19 and xy = 20, find the value of x2
(ii) If x2
= 101 and xy = 10, find the value of x – y
If x – 1/x = 7, find x2
= 7, find x - 1/x
= 11, find x - 1/x
What must be added to 16m2
– 24mn + 6n2
to make it a perfect square?
What must be subtracted to 25a2
– 20ab to make it a perfect square?
Express each the following expression as perfect square.
(ii) 1 + 49y2
Answers for the worksheet
on square of the difference of two binomials are given below to check the exact
answers of the above questions on squaring the binomials.
– 14x + 49
(ii) 9 – 66y + 121 y2
– 2 + 1/x2
– 2 + 1/5 x2
(i) (a – 3b)2
(ii) (1 – 7y)2
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