(a + 2b)² - (a + 2b)(3a - 7b) by factorization gives
A. (a + 2b)(9b - 2a)
B. a - 3b + 4ab
C. 5b - 4a
D. None of above
Related Questions on Chapter 5: Expansion & Factorization of Algebraic Expressions - Math Mcqs for Grade 7
If x=3 is solution of x² + kx + 15, the value of k is
A. k = -8,x = 5
B. k = 8, x = 3
C. k = 6, x = 5
D. None of above