Question

Піднесіть до квадрату: 1) (2x^2+x)^2 2) (3y^2-2y^3)^2 3) (5a^4-0,5a^2)^2 4) (-6b+2b^2)^2 5) (-3m^2-5m^3)^2 6) (-7x^5+3x^7)^2 7) (8x^3-3y^7)^2

Answer 1

1. 4x^2+4x^3+x^2
2. 9y^4-12y^5+4y^9
3. 25a^16-5a^6+0.25a^4
4. 36b^2-24b^3+4b^4
5. 9m^4+30m^5+25m^9
6. 49x^25-42x^12+9x^49
7. 64x^9-48x^3y^7+9y^49
Надеюсь правильно поняла задание...=)

Answer 2

$1) (2x^2+x)^2=4x^4+4x^3+x^2\\ 2) (3y^2-2y^3)^2=9y^4-12y^5+4y^6\\ 3) (5a^4-0,5a^2)^2=25a^8-5a^6+0.25a^4\\ 4) (-6b+2b^2)^2=36b^2-24b^3+4b^4\\ 5) (-3m^2-5m^3)^2=9m^4+30m^5+25m^6\\ 6) (-7x^5+3x^7)^2=9x^{14}-42x^{12}+49x{10}\\ 7) (8x^3-3y^7)^2=64x^{6}-48x^3y^7+9y^{14}$