Class 8 Algebraic Identities

(m+1)(m+3) is of the form

• $\left(a+b\right)^2$

• $\left(a-b\right)^2$

• $\left(x+a\right)\left(x+b\right)$

• none of these

Tags

CCSS.HSA.APR.C.4

 $25a^2-4b^2$  is of the form

•  $a^2-b^2$  

•  $\left(a+b\right)^2$  

•  $\left(a-b\right)^2$  

• none of these

Tags

CCSS.HSA.APR.C.4

(5-p)(5-p) is of the form

•  $\left(a-b\right)\left(a+b\right)$  

•  $\left(a-b\right)^2$  

•  $\left(a+b\right)^2$  

• none of these

Tags

CCSS.HSA.APR.C.4

 $\left(3x+5y\right)\left(3x+5y\right)$  is of the form

•  $3x^2-5y^2$  

•  $\left(3x-5y\right)^2$  

•  $\left(3x+5y\right)^2$  

• none of these

Tags

CCSS.HSA.APR.C.4

 $\left(a-5\right)\left(2a-9\right)$  is of the form

•  $\left(a+b\right)\left(a-b\right)$  

•  $\left(a+b\right)^2$  

•  $\left(x+a\right)\left(x+b\right)$  

• none of these

Tags

CCSS.HSA.APR.C.4

 $\left(4-a\right)\left(4-b\ \right)$  is of the form

•  $\left(x+a\right)\left(x+b\right)$  

•  $\left(a-b\right)^2$  

•  $\left(a+b\right)^2$  

• none of these

Tags

CCSS.HSA.APR.C.4

 $8a^{3\ }+\ 64b^3$  is of the form

•  $\left(a+b\right)^3$  

•  $\left(a-b\right)^3$  

•  $a^3\ +b^3$  

•  $a^3-b^3$  

Tags

CCSS.HSA.APR.C.4

 $225^3$  can be calculated easily using 

•  $a^3+\ b^3$  

•  $\left(a+b\right)^3$  

•  $\left(a+b\right)^2$  

• none of these

Tags

CCSS.HSA.APR.C.4

 $\left(a^2+2ab\ +b^2\right)$  is the expansion of

•  $\left(a+b\right)^2$  

•  $\left(a-b\right)^2$  

•  $\left(a+b\right)^3$  

• none of these

Tags

CCSS.HSA.APR.C.4

 $\left(a-b\right)^3+3ab\left(a-b\right)$  is the expansion of 

•  $\left(a+b\right)^3$  

•  $\left(a-b\right)^3$  

•  $\left(a^3-b^3\right)$  

•  $\left(a^3+b^3\right)$  

Tags

CCSS.HSA.APR.C.5