Question

F(x) = -5x⁵ + 7x³+x²- 2x+12

G(x)=-4x⁴=x³⁺7x²+8x -9

F(x) + G(x)

Answer 1

F(x)+G(x)=(-5x\(^5\)+7x^3+x^2-2x+12)+(-4x^4+x^3+7x^2+8x-9)

=(-5x^5)+(7x^3+x^3)+(x^2+7x^2)+(-2x+8x)+(

-4x^4)+(12+-9) =(-5x^5)+8x^3+8x^2+6x+(-4x^4)+3. CHÚC BẠN HỌC TỐT

Answer 2

F(x)+G(x)=(-5x³+7x³+x²-2x+12)+(-4x⁴+x³+7x²+8x-9)=-5x⁵-4x⁴+8x³+8x²+6x+3

Answer 3

\(F\left(x\right)+G\left(x\right)=\left(-5x^5+7x^3+x^2-2x+12\right)+\left(-4x^4+x^3+7x^2+8x-9\right)\)

= \(-5x^5+7x^3+x^2-2x+12-4x^4+x^3+7x^2+8x-9\)

= \(=-5x^5+\left(7x^3+x^3\right)+\left(x^2+7x^2\right)+\left(-2x+8x\right)+\left(12-9\right)-4x^4\)

= \(-5x^5-4x^4+8x^3+8x^2+6x+3\)

Answer 4

Cho mk hỏi chút trc x³ là + hay - vậy

Answer 5

\(-4x^4=\)hay cộng hay trừ vậy

Answer 6

F(x) + G(x)= (-5x^5 + 7x^3 + x^2 - 2x + 12) + (-4x^4 + x^3 + 7x^2 + 8x -9)

= -5x^5 + 7x^3 + x^2 - 2x + 12 - 4x^4 + x^3 + 7x^2 + 8x -9

=(7x^3 + x^3) + (x^2 + 7x^2) + (-2x + 8x) + (12 - 9) - 5x^5 - 4x^4

= 8x^3 + 8x^2 + 6x + 3 - 5x^5 - 4x^4.

Chúc bạn học tốt!