Answer:
3 − √11
Step-by-step explanation:
For polynomials with rational coefficients, any radical roots must come in conjugate pairs. To find the conjugate, simply reverse the sign of the radical.
FOIL is an 'acronym'. It helps you remember how to multiply
two binomials ... like (2x-7) and (5x+5) .
FOIL stands for "First, Outside, Inside, Last". Here's how it's used
to multiply these particular two binomials:
(2x - 7) (5x + 5)
First: (2x) (5x) = 10x²
Outside: (2x) (5) = 10x
Inside: (-7) (5x) = -35x
Last: (-7) (5) = -35
Add them all together, and you have the product:
10x² + 10x -35x -35
Simplify the sum: 10x² - 25x -35
or 5(x² - 5x - 7) .
Answer:
hj
Step-by-step explanation:
J=2M-8
J+M=76
(2M-8)+M=76
3M-8=76
3M=84
M=28
J=2M-8
J=2(28)-8
J=56-8
J=48 years old
Answer:
1. 10 students. 2. 5 students 3. 12 students
Step-by-step explanation:
