Question

1.(a+4b)(-a-3b)
2.(2s+t)(3s-5t)
3.(x²-y²)(x²+y²)
4.(x²-5)(4x²+1)
5.(x²+x)(3x²+2)
tlg dijwb pakai cara, mksih

Answer 1

1. -a^2-7ab-12b^2
2. 70s-10st+35t-5t^2
3. x^4-y^4
4. 4x^4-19x2-5
5. 3x^4+2x^2+3x^3+2x

Answer 2

1. -a²-7ab-12ab²
2. 6s²-7st-5t²
3. x^4+y^4
4. 4x^4-19²-5
5. 3x^4+2x²+3x^3+2x
maaf kalau salah