(x + y)(5x + y)
(x + y)2
(x + 5y)(5x + y)
5(x + y)2
Correct answer is C
9(x + y)2 - 4(x - y)2
Using difference of two squares which says
a2 - b2 = (a + b)(a - b) = 9(x + y)2 - 4(x - y)2
= [3(x + y)]2 - [2(x - y)]-2
= [3(x + y) + 2(x - y) + 2(x - y)][3(x + y) - 2(x - y)]
= [3x +3y + 2x - 2y][3x + 3y - 2x + 2y]
= (5x + y)(x + 5y)
The percentage of the students with mass less than 69kg is ...
Find the average of the first four prime numbers greater than 10 ...
Find the standard deviation of the following data -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5 ...
Find the range of values of x for which \(\frac{1}{x}\) > 2 is true...
From the diagram above. Find the fraction of the shaded position? ...
Find the equation whose roots are 2 and \(-3\frac{1}{2}\)...