Question

(8x – 13) (8x + 11) please answer​

Answer 1

Answer:

(8x_13)(8x+11)

8x(8x+11)_13(8x+11)

64x+88x_144x_143

152x-144x_143

8x_143

Answer 2

Answer:

$\Huge \boxed{64x^2-16x-143}$

Step-by-step explanation:

To solve this problem, first you have to use the foil method formula of $\displaystyle (a+b)(c+d)=ac+ad+bc+bd$. You can also use distributive property of $\displaystyle a(b+c)=ab+ac$.

$\displaystyle A=8x\\\\\displaystyle B=(-13)\\\\\displaystyle C=8x\\\\\displaystyle D=11$

First, rewrite the whole problem.

$\displaystyle 8x*8x+8x*11(-13)*8x+(-13)*11$

Next, you can do is apply by the minus sign to plus sign.

$\displaystyle 8*8xx+8*11x-13*8x-13*11$

Solve.

Multiply numbers from left to right.

$\displaystyle 8*8xx=64x^2$

$\displaystyle 8*11x=88x$

$\displaystyle 13*8x=104x$

$\displaystyle 13*11=143$

$\displaystyle 64x^2+88x-104x-143$

Then, add numbers from left to right.

$\displaystyle 88x-104x=\boxed{-16x}$

$\displaystye =\boxed{64x^2-16x-143}$

$\large\bigstar\boxed{\textnormal{The correct answer is \boxed{64x^2-16x-143}}}.\bigstar$