20132865427 20132865427

03-02-2022
Mathematics

contestada

For what values of x does the following hold true: (4x+7)^2=(7x+4)^2

Respuesta :

ollived07 ollived07

07-02-2022

Answer:

x=1,x=-1

Step-by-step explanation:

(4x+7)^2=(7x+4)^2

16x^2+56x+90=49x^2+56x+16

16x^2+56x+49-49=49x^2+56x+16-49

16x^2+56x=49x^2+56x-33

16x^2+56x-56x=49x^2+56x-33-56x

16x^2=49x^2-33

16x^2-49x^2=49x^2-33-49x^2

-33x^2=-33

x^2=1

x=1,-1

Answer Link

Otras preguntas

can anyone help me?.....

Find the function h(x) = f(x) + g(x) if f(x) = 4 x + 2 and g(x) = x - 4. h(x) = 4x + x + 6 h(x) = 4x + 1 -2 h(x) = 4x + x - 2 h(x) = 4x - 4

Utilities software and word processing software are both eamples of

$13,055 is invested, part at 14% and the rest at 9%. If the interest earned from the amount invested at 14% exceeds the interest earned from the amount investe

Kim believed he failed his math class because the test was too hard, passed his psychology class because the professor passed every student in the class, and di

what is input, conversion process, and output

Courts generally use the ________ when determining the value of human life in wrongful death suits.

Which pair of verbs correctly completes the following sentence? Hier j’______ un bon restaurant sur l’internet et j’______ dans le meilleur restaurant du coin.

Khianna wants to make a batch of her Grandma chocolate chip cookies from a friend. The recipe is shown on the recipe card below ( in the photo) She realizes she

Utilitarianism is said to endorse "the ends justify the means" approach to moral decision-making. the "means" in the phrase is what?