Cambridge connection Mathematics>Chapter 6 - Algebraic Expressions>ASSESSMENT>Q 15

MEDIUM

7th ICSE

IMPORTANT

Earn 100

If $A = 6 l^{3} + 3 m^{3} - n^{3}$ , $B = - l^{3} - 9 m^{3} + 4 n^{3}$ , then find $(A + 2 B) + (- 4 A + 3 B)$

Important Questions on Algebraic Expressions

MEDIUM

7th ICSE

IMPORTANT

Cambridge connection Mathematics>Chapter 6 - Algebraic Expressions>ASSESSMENT>Q 16

What should be the value of

K

if the value of the expression

4 x^{2} - 5 x + K

is

- 1

and

x = - 1