Please solve it I will give you 30 points
2 answers:
Answer:
1. (2x^2+x-1)
Step-by-step explanation:
expanding (2x^2-1)^2. multiplying (x-2) (1-2x)
= 4x^2-4x+1. = x-2x^2-2+4x
= -2x^2+5x-2
(4x^2-4x+1-2x^2+5x-2)
=2x^2+x-1
Answer:
1.) (2x - 1)(x + 1)
2.) a = 6 ; b = -1
4.a.) x = all rational numbers excluding (-2÷3)
4.b.) x = -1
4.c.) Yes. x = 1÷2
Step-by-step explanation:
E(x) = (2x - 1)² + (x - 2)(1 - 2x) F(x) = ax²-bx-2
F(1) = 5 ; F(-2) = 20
a-b=7 ; 4a+2b=22
3.Answer) Q(x) = 6x² + x - 2
= 6x² + 4x - 3x - 2
= (3x + 2)×(2x - 1)
Hence verified!
P(x) = E(x) ÷ Q(x)
= (x + 1)÷(3x + 2)
Here, x belongs to,

Means, except x = -2÷3 , all real numbers are valid excluding complex numbers.
P(x) = (x + 1)÷(3x +2) = 0
= > x = -1
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Answer:
44.5
Step-by-step explanation:
area of rectangle : w*l=3*9=27
area trianle= (height*base)/2= (5*7)/2=35/2=17.5
27+17.5=44.5
Ummm I think the answer is 9
i saw its C because where the solutions are located. sorry if it’s wrong, i’m rusty
Answer:
See below ~
Step-by-step explanation:
Finding t₁₂ :
⇒ t₁₂ = t₁ + 11d
⇒ t₁₂ = 6 + 11(2)
⇒ t₁₂ = 6 + 22
⇒ t₁₂ = 28
=============================================================
Finding S₁₂ :
⇒ S₁₂ = 12/2 × 2t₁ + (12 - 1)d
⇒ S₁₂ = 6 × 2(6) + 11(2)
⇒ S₁₂ = 6 × 12 + 22
⇒ S₁₂ = 6 × 34
⇒ S₁₂ = 204