Math, asked by rameshphapale96, 3 days ago

3) Simplify (5x-7y) + (5x + 7y)

Answers

Answered by Anonymous

0

Answer:

25x²-49y²

Step-by-step explanation:

use the identity

(a-b)(a+b) = a²-b²

(5x-7y)(5x+7y) = (5x)²-(7y)² = 25x²-49y²

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Answered by steffiaspinno

1

x= 0

Explanation:

Given:

(5x-7y) + (5x + 7y)

Solution:

==> Solve the brackets

==> Add the coefficient x and y seperately

==> (5x-7y)+ (5x+7y)

==> 5x-7y+5x+7y =0

==> +7y-7y gets cancel

==> 5x+5x = 10x

==> 10x = 0

==> x= 0

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