In this topic algebra worksheets 7 you can find 6 questions in the form of quiz.You can also find the answers also.Students who are practicing algebraic identity must attend this test to test their knowledge.
These question paper is mainly prepared for 8th,9th and 10th grade students.You can click the link answer to get direct answer without taking test.You are given the problems based on the second formula that is (a² - b²)
1. Expand (4x² - 9y²)
2. Expand (x² - y²)
3. Expand (64x² - 25y²)
4. Expand (81N² - 4L²)
5. Expand (p ² - Q ²) algebra worksheets 7
Answers :
1. (2x + 3y) (2x - 3y)
2. (x+y) (x-y)
3. (8x + 5y) (8x - 5y)
4. (9N + 2L) (9N - 2L)
5. (p + q) (p - q)
Quote on Mathematics
“Mathematics, without this we can do nothing in our life. Each and everything around us is math.
Math is not only solving problems and finding solutions and it is also doing many things in our day to day life. They are:
It subtracts sadness and adds happiness in our life.
It divides sorrow and multiplies forgiveness and love.
Some people would not be able to accept that the subject Math is easy to understand. That is because; they are unable to realize how the life is complicated. The problems in the subject Math are easier to solve than the problems in our real life. When our people are able to solve all the problems in the complicated life, why can we not solve the simple math problems?
Many people think that the subject math is always complicated and it exists to make things from simple to complicate. But the real existence of the subject math is to make things from complicate to simple.”
Solution for question 1 |
(a^{2} - b^{2}) = (a + b)(a - b)
we can write (4x^{2} - 9y^{2}) as (2x)^{2} - (3y)^{2} here a = 2x and b = 3y (2x)^{2} - (3y)^{2} = (2 x + 3 y)(2 x - 3 y) |
Solution for question 2 |
(a^{2} - b^{2}) = (a + b)(a - b)
we can write (x^{2} - y^{2}) as here a = x and b = y x^{2} - y^{2} = (x + y)(x - y) |
Solution for question 3 |
(a^{2} - b^{2}) = (a + b)(a - b)
we can write (64x^{2} - 25y^{2}) as (8x)^{2} - (5y)^{2} here a = 8x and b = 5y (8x)^{2} - (5y)^{2} = (8 x + 5 y)(8 x - 5 y) |
Solution for question 4 |
(a^{2} - b^{2}) = (a + b)(a - b)
we can write (81 N^{2} - 4 L^{2}) as (9 N)^{2} - (2 L)^{2} here a = 9 N and b = 2 L (9 N)^{2} - (2 L)^{2} = (9 N + 2 L)(9 N - 2 L) |
Solution for question 5 |
(a^{2} - b^{2}) = (a + b)(a - b)
here a = P and b = Q P^{2} - Q^{2} = (P + Q)(P - Q) |