Question

Simplify ( 2x +3 ) ( 2x -7) plzz answer fast

Answer 1

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4x² - 8x - 21 is your Answer

Step-by-step explanation:

(2x + 3) (2x - 7)

》2x (2x - 7) + 3 (2x - 7)

》(2x × 2x) + (2x - 7) + (3 × 2x) + (3 × -7)

》4x² - 14x + 6x - 21

》4x² - 8x - 21

More Information

What is Algebraic Expression?

Ans: An Expression in which the variables and numbers connected with the fundamental Operations I.e +,-,×,÷ is called an Algebraic Expression.

Answer 2

Solution

Given ,

• (2x+3)(2x-7)

Solving this we get ;

=> (2x+3)(2x-7)

=> 2x ( 2x-7) 3(2x-7)

=> 4x^2 -14x +6x - 21

=> 4x^2 -8x-21

The value of the equation is 4x^2 -8x-21 .

Additional explanations

We solved the above equation by this method ;

(a+b)(c-d)

= a(c-d)b(c-d)

= ac - ad + bc - bd

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$(x + y) ^{2} = {x}^{2} + {y}^{2} + 2xy$

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$(x - y) ^{2} = {x}^{2} + {y}^{2} - 2xy$

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$(x + y)(x - y) = {x}^{2} - {y}^{2}$

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$(x + a)(x + b) = {x}^{2} + (a + b)x + ab$

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