Question

a)(b+3)²;б)(10-с)²;в)(у-9)²;г)(9-у)²;д)(а+12)²;е)(15-х)²;ж)(b-0,5)²;з)(0,3-m)² ОООЧЕНЬ СРОЧНО,ПЖЛСТТ:3

Answer 1

a) b^2+6b+9

b)100-20c+c^2

c)y^2-18y+9

d)81-18y+y^2

e)a^2+24a+144

h)b^2-b+0.25

g)0.09-0.6m+m^2

 

Answer 2

a)b^2+6b+9

б) 100-20c+c^2

в) y^2-18y+81

г) 81 - 18y + y^2

д) a^2 + 24a + 144

е) 225 - 30x + x^2

ж) b^2-b+0.25

з) 0,09 - 0,6m + m^2

Answer 3

a) (b+3)²

To find the square of the expression (b+3)², we can use the formula for squaring a binomial:

(a+b)² = a² + 2ab + b²

In this case, a = b and b = 3, so we have:

(b+3)² = b² + 2*b*3 + 3² = b² + 6b + 9

So, the square of the expression (b+3) is b² + 6b + 9.

б) (10-с)²

Similarly, for the expression (10-c)², we can again use the formula for squaring a binomial:

(a-b)² = a² - 2ab + b²

In this case, a = 10 and b = c, so we have:

(10-c)² = 10² - 2*10*c + c² = 100 - 20c + c²

So, the square of the expression (10-c) is 100 - 20c + c².

в) (у-9)²

For the expression (y-9)², we can use the same formula:

(a-b)² = a² - 2ab + b²

In this case, a = y and b = 9, so we have:

(y-9)² = y² - 2*y*9 + 9² = y² - 18y + 81

So, the square of the expression (y-9) is y² - 18y + 81.

г) (9-у)²

For the expression (9-y)², using the same formula:

(a-b)² = a² - 2ab + b²

In this case, a = 9 and b = y, so we have:

(9-y)² = 9² - 2*9*y + y² = 81 - 18y + y²

So, the square of the expression (9-y) is 81 - 18y + y².

д) (а+12)²

For the expression (a+12)², using the formula for squaring a binomial:

(a+b)² = a² + 2ab + b²

In this case, a = a and b = 12, so we have:

(a+12)² = a² + 2*a*12 + 12² = a² + 24a + 144

So, the square of the expression (a+12) is a² + 24a + 144.

е) (15-х)²

For the expression (15-x)², using the formula for squaring a binomial:

(a-b)² = a² - 2ab + b²

In this case, a = 15 and b = x, so we have:

(15-x)² = 15² - 2*15*x + x² = 225 - 30x + x²

So, the square of the expression (15-x) is 225 - 30x + x².

ж) (b-0,5)²

For the expression (b-0.5)², using the formula for squaring a binomial:

(a-b)² = a² - 2ab + b²

In this case, a = b and b = 0.5, so we have:

(b-0.5)² = b² - 2*b*0.5 + 0.5² = b² - b + 0.25

So, the square of the expression (b-0.5) is b² - b + 0.25.

з) (0,3-m)²

For the expression (0.3-m)², using the formula for squaring a binomial:

(a-b)² = a² - 2ab + b²

In this case, a = 0.3 and b = m, so we have:

(0.3-m)² = 0.3² - 2*0.3*m + m² = 0.09 - 0.6m + m²

So, the square of the expression (0.3-m) is 0.09 - 0.6m + m².

I hope this helps! Let me know if you need further assistance.