Option 1 : -22
using formula
(a + b )(a - b ) = a^2 - b^2
(√10 + 2√8) (√10 - 2√8)
= (√10)^2 - (2√8)^2
= 10 - 2×2×8=10-32
= -22
2nd question answer is option 3
Answer:
207
Step-by-step explanation:
This is about understanding GCMF.
<em><u>GCMF = x</u></em>
- GCMF is simply an abbreviation for greatest common factor.
- It is the highest factor that is common to 2 or more numbers or figures.
- We want to find the GCMF of x² + 2x.
- Let's list the factors of both;
Factors of x² = x, x
Factors of 2x = 2, x
- The factor common to both of them is x.
Thus,
GCMF = x
Read more at; brainly.in/question/24610878
Answer:
n=3
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
6(2n+5)=66
(6)(2n)+(6)(5)=66(Distribute)
12n+30=66
Step 2: Subtract 30 from both sides.
12n+30−30=66−30
12n=36
Step 3: Divide both sides by 12.
12n/12 = 36/12
n=3
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