Solve the question: (i) am^2 + bm^2 + bn^2 + an^2 (ii) (lm + l) + m + 1 (iii) y(y + z) + 9(y + z)
Solve the question:
(i) am2 + bm2 + bn2 + an2
(ii) (lm + l) + m + 1
(iii) y(y + z) + 9(y + z)
4 views
1 Answers
(i) am2 + bm2 + bn2 + an2
= am2 + bm2 + an2 + bn2
= m2(a + b) + n2(a + b)
= (a + b) (m2 + n2)
(ii) (lm + l) + m + 1 = lm + m + l + 1
= m(l + 1) + 1(l + 1)
= (l + l) (m + 1)
(iii) y (y + z) + 9 (y + z)
= (y + z) (y + 9)
4 views
Answered