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3 years ago

8

Factorise fully the following: a) 3x + 18 b) 2x - 14 c) 6x + 4 d) 9x - 15

2 answers:

nikklg [1K]3 years ago

7 0

A) 3(x+6)
b) 2(x-7)
c) 2(3x+2)
d) 3(3x-5)

JulsSmile [24]3 years ago

4 0

Answer:

I have attached the work to your problem.

Please see the attachment below.

I hope this helps.

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5(x-2)^2-29=-14 what does x equal

eimsori [14]

Answer:

x = $2+\sqrt{3}$

Step-by-step explanation:

5(x-2)^2= 15 ←add 29 on both sides

(x-2)^2= 3 ← divide by 5 on both sides

x-2= $\sqrt{3}$ ← find the sq root of both sides

x= $2+\sqrt{3}$ ← add 2 on both sides

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3 years ago

On a coordinate plane, line M N goes through points (2, 3) and (negative 3, 2). Point K is at (3, negative 3). Which point could

Fynjy0 [20]

MN goes through

(2,3)
(-3,2)

Slope:-

m=2-3/-3-2=-1/-5=1/5

Slope of perpendicular line:-

-5

Passes through k(3,-3)

Equation in point slope form

y-y1=m(x-x1)
y+3=-5(x-3)
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y=-5x+12

Check one by one

0=-5(-12)+12=60+12=72
2=-5(2)+12=-10+12=2

Yes option B is correct

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