R S Aggarwal Solutions for Chapter: Algebraic Expressions, Exercise 4: EXERCISE 8D

Simplify:

$86-[15x-7(6x-9)-2\{10x-5(2-3x)\left\}\right]$

Find the value of $k$.

$5a-\left[a^2-\left\{2a\left(1-a+4a^2\right)-3a\left(a^2-5a-3\right)\right\}\right]-8a = 5a^3+k a^2+8a$

Find the value of $k$.

$3-\left[x-\left\{2y-(5x+y-3)+2x^2\right\}-\left(x^2-3y\right)\right] = 3x^2-2y-k x+6$

Simplify: $xy-[yz-zx-\left\{yx-(3y-xz)-(xy-zy)\right\}]$

Simplify:

$2a-3b-[3a-2b-\left\{a-c-(a-2b)\right\}]$

Simplify $-a-[a+\{a+b-2a-(a-2b)\}-b]$.

Simplify:

$2a-[4b-\{4a-(3b-\overline{2a+2b})\left\}\right]$

Simplify:

$5x-[4y-\{7x-(3z-2y)+4z-3(x+3y-2z)\left\}\right]$