Question

answer all the questions ​

Answer 1

Answer:

The degree of a constant term is 0

3x² - 4x + 3 + 3x - 8x² - 9

➡️ (3-8)x² +(-4+3)x +(-9+3)

➡️ -5x² - x - 6

X = 180-90

X = 90°

y = 120-60

y = 60

Answer 2

Answer:

2)3x^2-4x+3+3x-8x^2-9

=-5x^2-1x-6

3)A=30

B=60

C=x

in a triangle,sum of three angles is 180 degrees

A+B+C=180

30+60+x=180

90+x=180

x=180-90=90 degrees

hence,it is a right angles triangle

4) answer is 60 degrees

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Step-by-step explanation: