Answer:
a) (x + 5) (x - 5)
b) (x + 5i) (x - 5i)
c) (x + (5i/2)) (x - (5i/2))
d) (x-1)(x-1)
e) x +i√3 +1) (x -i√3+1)
Step-by-step explanation:
To solve this, we will need to factorize each quadratic function making it equal to zero first and then proceeding to find x
a) f(x) = x²-25
x²-25 = 0
⇒(x + 5) (x - 5)
b) f(x)=x²+25
x² + 25 = 0
x²= -25
x = √-25
x = √25i
x = ±5i
⇒(x + 5i) (x - 5i)
c) f(x)=4x²+25
4x²+25 = 0
4x²= -25
x² = -25/4
x = ±√(-25/4)
x = ±(√25i)/2
x = ±5i /2
⇒(x + (5i/2)) (x - (5i/2))
d) f(x)=x²-2x+1
x²-2x+1 = 0
⇒(x - 1)²
e) f(x)=x²-2x+4
x²-2x+4 = 0
x²-2x = -4
x²-2x +1 = -4 +1
x²-2x + 1 = -3
(x-1)² +3 = 0
(x-1)²= -3
x-1 = √-3
x = ±√3i +1
⇒(x +i√3 +1) (x -i√3+1)
You have to do 6/1 ÷3/4 then keep 6/1 as it is an change 3/4 to 4/3 and do 6/1 × 4/3
Answer:
1st box(the top one in the middle row): 5^4-5 = 5^-1
2nd box(the top one in the last row): 5*5*5*5/5*5*5*5*5 = 1/5
3rd box(the bottom one in the middle row): x^-6
4th box(the bottom one in the last row): x/x*x*x*x*x*x*x=1/x^6
Answer:
16
Step-by-step explanation:
Step 1) Multiple 7 by w, which w is 10. So, you do 7 x 10.
Now, you should have 70 - 54.
Step 2) Do 70 - 54.
Your answer should be 16.
Hope this helps,
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