Question

(y+1)*(y+3) (m-1)*(m+4) (3-5x)*(x+11) (8-3b)*(b+5) a(a-3)+(a+1)*(a+4) Решите пожалуйста Срочно надо

Answer 1

(y+1)*(y+3)= $y^{2}$+3y+y+3
(m-1)*(m+4)= $m^{2}$+4m-m-4
(3-5x)*(x+11)=3x+33-15 $x^{2}$-55
(8-3b)*(b+5)=8b+40-3 $b^{2}$-15b
a(a-3)+(a+1)*(a+4)=2 $a^{2}$+2a+4

Answer 2

А)(y+1)*(y+3)=+3y+y+3
б)(m-1)*(m+4)=+4m-m-4
в)(3-5x)*(x+11)=3x+33-15-55
г)(8-3b)*(b+5)=8b+40-3-15b
д)a(a-3)+(a+1)*(a+4)=2+2a+4

Answer 3

1. (y+1)*(y+3) = y^2 + 4y + 3
2. (m-1)*(m+4) = m^2 + 3m - 4
3. (3-5x)*(x+11) = -5x^2 + 28x + 33
4. (8-3b)*(b+5) = -3b^2 + 29b + 40
5. a(a-3)+(a+1)*(a+4) = a^2 + a^2 - 2a + a + 4a + 4 = 2a^2 + 3a + 4

Note: I solved each expression by expanding the multiplication using the distributive property.