3 years ago

(4x+2)(x-2) can someone help me with this question?

Mathematics

2 answers:

dem82 [27]3 years ago

7 0

Answer:

if you needed it simplify its 4x^2-6x-4

alexandr1967 [171]3 years ago

6 0

Answer:

Use distributive property and multiply

Step-by-step explanation:

then you will get your polynomial

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3) Solve each equation using the quadratic formula. Show<br> a. x2 – 3x – 10 = 0

Naya [18.7K]

Answer:

Step-by-step explanation:

The quadratic formula of a quadratic equation

$ax^2+bx+c=0\\\\\text{If}\ b^2-4ac>0\ \text{then the equation has two solutions}\ x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}$

$\text{If}\ b^2-4ac=0\ \text{then the equation has one solution}\ x=\dfrac{-b}{2a}$

$\text{If}\ b^2-4ac$

We have:

$x^2-3x-10=0\to a=1,\ b=-3,\ c=-10\\\\b^2-4ac=(-3)^2-4(1)(-10)=9+40=49>0\\\\x=\dfrac{-(-3)\pm\sqrt{49}}{2(1)}=\dfrac{3\pm7}{2}\\\\x=\dfrac{3-7}{2}=\dfrac{-4}{2}=-2\\or\\x=\dfrac{3+7}{2}=\dfrac{10}{2}=5$

5 0

3 years ago

Pls help me will make you brainliest k no file too

wolverine [178]

Answer:

286 cubes

Step-by-step explanation:

Find the area by multiplying the fractions. You get 71 1/2. Divide the area by 1/4 that determines your answer.

8 0

2 years ago

Please help me on this will give you brainliest!

kirill [66]

Answer:

∠V = 33°

∠W = 90°

∠X = 57°

Step-by-step explanation:

In a right triangle, the sum of the acute angles is 90 degrees

(2x+3) + (3x+12) = 90

combine like terms

5x + 15 = 90

5x = 75

x = 15

∠V = 2x+3, x=15

2(15) + 3

30 + 3

33°

∠X = 3x+12, x=15

3(15) + 12

45 + 12

57°

8 0

3 years ago

Read 2 more answers

Help needed please and thank you

Dovator [93]

A OK this was hard very hard

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3 years ago

Find the slope of the line that passes through (9, 10) and (1, 13) .

erik [133]

Answer:

-3/8 is the slope of the line

Step-by-step explanation:

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2 years ago