Answer:
Step-by-step explanation:
8x² + 2(x²-1) = 8x² + 2*x² - 2*1
= 8x² + 2x² -2
= 10x² -2
Like terms: 8x² , 2x²
Answer:
m=8-p
Step-by-step explanation:
Where is the question it just says 1-3
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First answer is -5.
Second answer is -1.
Answer:
x = 34
Step-by-step explanation:
The 3 given angles form a straight angle and sum to 180°, hence
x + 12 + 100 + x = 180
2x + 112 = 180 ( subtract 112 from both sides )
2x = 68 ( divide both sides by 2 )
x = 34
