Answer:
A. C. And D. Are same
Step-by-step explanation:
(4x+5)(-3x-1)
Applying distributive law
4x(-3x-1)+5(-3x-1)
Again applying distributive law in both the brackets
[tex]-12x^2-4x-15x-5[/tex]
Adding the terms having same power of x
[tex]-12x^2-19x-5[/tex]
1. [tex]-16x^2+10x-3+(4x^2-29x-2 ) [/tex]
Simplifying the terms containing the same power of x
[tex]-16x^2+10x-3+4x^2-29x-2[/tex]
[tex]-12x^2-19x-5[/tex]
Hence it is true
2. [tex]3(x-5)-2(6x^2+9x+5) [/tex]
[tex]3x-15-12x^2-18x-10[/tex]
[tex]-12x^2-15x-25[/tex]
False
3. [tex]2(x-1)-3(4x^2+7x+1) [/tex]
[tex]2x-2-12x^2-21x-3[/tex]
[tex]-12x^2-19x-5[/tex]
True
4. [tex]2x^2-11x-9-(14x^2+8x-4)[/tex]
[tex]2x^2-11x-9-14x^2-8x+4[/tex]
[tex]-12x^2-19x-5[/tex]
True
5. [tex] -15x^2+9x-10+3x^2-10x-5[/tex]
[tex]-12x^2+19x-15[/tex]
False
6. [tex]4x^2-13x-7-(16x^2+9x-5)[/tex]
[tex]4x^2-13x-7-16x^2-9x+5[/tex]
[tex]-12x^2-22x-2[/tex]
False
