Question

3x^2 - 2x + 7 by 2x^2 + 4x - 5​

Answer 1

Answer :-

• QUESTION = 3x²-2x+7 by 2x²+4x-5

ANSWER :-

Remember :- (by) indicates multiplication

SYMBOL (X)

1. 3x²-2x+7 x 2x²+4x-5

REMEMBER :-

(-x-=+) and (+x+=+)

(-x+=-) and (+x-=-)

= 3x²-2x+7

(x) 2x²+4x-5

6x²-8x-35

STEP BY STEP EXPLANATION :-

3x² x 2x²

Remember:-If no sign is there before the number that indicates +

So:-

+3x² x +2x² = +6x² or 6x².

↑ Multiply 3 and 2 to get 6 and write x² as it is.

-2x x +4x = (-x+=-) so the answer is = -8x.

↑ Multiply 2 and 4 to get 8 and write x as it is. And also the sign is - because as I already told you (-x+=-).

+7 x -5 = (+x-=-) so the answer is = -35.

↑ Multiply 7 and 5 to get 35. And also the sign is - because as I already told you (-x+=-).

Remember:-

Variables are letters

• for example (xy) and more

Constants are numbers

• for example 1234567890

Please like my answer if this helped you .

THANK YOU ❤️

lxXItzDhanuXxl