Algebra is the dissension of arithmetic that uses letters in place of some unbeknown numbers. Algebra is a clump of mathematics, which is old to make mathematical problems of valid-globe actions and curb problems that we cannot explicate using arithmetic. Grade 7 algebra uses the cipher as computing for constituent, subtraction, propagation and dissension and it includes constants, operating signs and variables.We are exploit to see many grade 7 problems in the shadowing problems.
Here is the example:
5(4x + 6)2
Solution:
= 5 [(4x) 2 +62 + 2* 4x*6]
= 5(4x + 6)2 [for (4x + 6)2 use the formula (a + b) 2 = a2+b2+2ab]
= 5*16x2 + 5*36 + 5*48x
= 5 [16x2 + 36 + 48x]
= 80x2 + 180 + 240x
= 80x2 + 240x + 180
Here is the example:
5(4x + 6)2
Solution:
= 5 [(4x) 2 +62 + 2* 4x*6]
= 5(4x + 6)2 [for (4x + 6)2 use the formula (a + b) 2 = a2+b2+2ab]
= 5*16x2 + 5*36 + 5*48x
= 5 [16x2 + 36 + 48x]
= 80x2 + 180 + 240x
= 80x2 + 240x + 180
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