Math, asked by sujit1974, 1 year ago

please give me this question answer no.2

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Answered by RishabhBansal
1
Let's Simplify them

1. In this question all the terms are like
so
17a - 8a - 6a
= 17a - 14a
= 3a

2. -4x² - 7x² - 10x² + 20x²
= 20x² - 21x²
= - x²

Hope this helps

sujit1974: Thanks
RishabhBansal: welcome
sujit1974: but can you explain this step by step because if this question comes in exam then if I will write like this maam will give me half marks
RishabhBansal: there are as such no steps bro because even you can see that all the terms are like
sujit1974: okay and thanks
RishabhBansal: sizing
RishabhBansal: welcome*
Answered by harsha180920011
1
Given, -4X²-7X²-10X²+20X²
As all the terms have same variable with same degree, we can add or subtract the coefficients directly.
=> -4X²-7X²-10X²+20X² = [-4-7-10+20]X²
                                      = [-21+20]X²
                                      = [-1]X²
     -4X²-7X²-10X²+20X² = -X²

Hope my answer helps you.

sujit1974: Thanks
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