Answer:
a=30
a=0
Step-by-step explanation:
a=30; b=40; c=50
b= <u> </u><u>0</u><u>;</u> b=2; c=4
Answer:
we'll be using Pythagorean theorem to solve this question...the answer as stated above is 8
Answer:
Step-by-step explanation:
-7x = x² + 12
Set equation to zero:
x² + 7x + 12 = 0
Quadratic formula:
x = [-7±√(7²-4·1·12)]/[2·1]
= [-7±√1]/2
= -3,-4
The zeros are -3 and -4
Answer:
Step-by-step explanation:
The following formula tells us that a quadratic equation can be solved:
which gives us the real and distinct roots
We have been given an equation:
Here, on comparing it with general quadractic equation which is:
Here, a=4,b=6 and c=2
On substituting the values in the formula to find D
Now, to find x:
we have a formula:
On substituting the values we get:
On simplification:
Answer:
42
Step-by-step explanation:
89-5=84
84÷2=42
and reverse it to check
(42+5)+(42)=89